61. Eispap.html Find the Next Term, NJA Sloane, J. recreational math., 7 (1974), page 146. The Persistenceof a Number, NJA Sloane, J. recreational math, 6 (1973), pp. 9798. http://www.research.att.com/~njas/sequences/eispap.html

Papers dealing with integer sequences The On-Line Encyclopedia of Integer Sequences postscript pdf ], N. J. A. Sloane, in Handbook of Computer Science , 2000 (to appear). My Favorite Integer Sequences postscript pdf ], N. J. A. Sloane, Sequences and their Applications (Proceedings of SETA '98) , C. Ding, T. Helleseth and H. Niederreiter (editors), Springer-Verlag, London, 1999, pp. 103-130. On Cayley's Enumeration of Alkanes (or 4-Valent Trees) , E. M. Rains and N. J. A. Sloane, Journal of Integer Sequences Low-Dimensional Lattices VII: Coordination Sequences postscript pdf ], J. H. Conway and N. J. A. Sloane, Proc. Royal Soc. London, Series A , 453 (1997), pp. 2369-2389. The Primary Pretenders html postscript pdf ], J. H. Conway, R. K. Guy, W. A. Schneeberger and N. J. A. Sloane, Acta Arithmetica , 78 (1997), pp. 307-313. Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites , R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, Acta Cryst. , A52 (1996), pp. 879-889. A New Operation on Sequences: The Boustrophedon Transform postscript pdf ], J. Millar, N. J. A. Sloane and N. E. Young

62. Business Math Fun & Games The second list contains sites with math games, puzzles, brain teasers,and other recreational math activities. Learn and enjoy!! http://www.swcollege.com/web_resources/mathgames.htm

Introduction Math Tutorials and Other Resources Math Games, Puzzles, and ... Brain Teasers Introduction When you buy a car, follow a recipe, or decorate your home, you're using math principles. People have been using these same principles for thousands—even millions—of years, across countries and continents. Whether you're sailing a boat off the coast of Hawaii or building a house in New York, you're using math to get things done. How can math be so universal? First, human beings didn't invent math concepts; we discovered them. Also, the language of math is numbers, not English or German or Spanish. If we are well versed in this language of numbers, it can help us make important decisions and perform everyday tasks. Math can help us to shop wisely, buy the right insurance, remodel a home within a budget, understand population growth, or even bet on the horse with the best chance of winning the race. Learn and enjoy!!

63. About "Sir Roger Penrose" recreational math is the passion of Sir Roger Penrose, who wasrecently knighted for his outstanding contributions to mathematics....... http://mathforum.org/library/view/4807.html

Sir Roger Penrose Library Home Full Table of Contents Suggest a Link Library Help Visit this site: http://www.worldofescher.com/misc/penrose.html Author: World of Escher Description: Recreational math is the passion of Sir Roger Penrose, who was recently knighted for his outstanding contributions to mathematics. Penrose is a professor of mathematics at the University of Oxford in England, where he pursues an active interest in recreational math which he shared with his father. While most of his work pertains to relativity theory and quantum physics, he is fascinated with a field of geometry known as tessellation, the covering of a surface with tiles of prescribed shapes. Levels: High School (9-12) College Languages: English Math Topics: Symmetry/Tessellations History and Biography Quantum Theory Relativity/Gravitational Theory ... Search http://mathforum.org/ webmaster@mathforum.org

64. Tom Moore's Web Page Let me offer you some nice links that I've discovered. CryptographyScience Fiction recreational math ThreeDimensions. Publications. http://webhost.bridgew.edu/moore/

Tom Moore's Web Page General Information I am a Professor of Mathematics in the Department of Mathematics and Computer Science at Bridgewater State College . My address, phone and fax number are given below. My degrees were obtained at Stonehill College and at The University of Notre Dame , both schools run by the Congregation of the Holy Cross. For information on my current courses, office hours, etc. go here Scott Kim . All rights reserved. Mathematical Interests My research interests are in finite group theory and number theory, as well as their connections to Recreational Mathematics . See my publications below. Pedagogical Interests I am interested in the use of technology at all levels of the mathematics curriculum.For example in an introductory Linear Algebra course I have used MINimal MATlab from Joel W. Robbin which accompanies his 1995 Matrix Algebra textbook. I have most recently taught this course aided by MAPLE V software from Waterloo Maplesoft . I am currently absorbing the nuances of MAPLE 6 to use in various of my courses. My Maple worksheets will be placed here Maple Worksheets for anyone who wishes to use them. They are in the areas of Linear Algebra, Number Theory and Abstract Algebra.

65. My Recreational Math Pages My Web Pages recreational math . . . The recreational math Pages. The SomaCube Puzzle Revisiting Mr. Hein's fascinating discovery The Soma Cube; http://www2.ittu.edu.tm/math/ttm-math/mathematics/mat fuar/soma cubes/~dmn1/reci

My Web Pages Recreational Math . . . The Recreational Math Pages The Soma Cube Puzzle Revisiting Mr. Hein's fascinating discovery - The Soma Cube Traffic Maze of Floyd's Knob mogris@excite.com

66. Spring Conference 7 th Annual Spring Conference. Join us for the 7 th annual CMC 3 recreational mathconference! Join us for the 6 th annual CMC 3 recreational math conference! http://www.cmc3.org/spring_conf.html

Spring Fall Mathematics Schools and ... Announcements th Annual Spring Conference Join us for the 7 th annual CMC recreational math conference! Horizon Hotel and Resort Lake Tahoe, Nevada May 9 - 10, 2003 For a room, call the Horizon Hotel and Resort toll free (888) 511-5743 or (888) 648-3322 by April 3. CMC3 rates are $92 per night (single or double occupancy) Friday, May 9 Featured Speaker To Be Announced To Be Announced To Be announced Saturday, May 10 Featured Speaker To Be Announced To Be Announced To Be announced Spring 2002 Speakers (We're still working on the 2003 List of speakers) Featured Session Speakers Joel Siegal, Sierra College Excursions in the solutions of b^x = x Don Chakerian, UC Davis On the Border Between Geometry and Number Theory: Some Problems in Discrete Geometry Allan Goff, Novatia Labs The Fast hierarchy Laura Whitlock, Sonoma State University

67. Math Resources recreational mathematics Speaking of recreational math, here's a great jumpingoff point for finding lots of rec math sites. Computer Resources. http://www.ite.sc.edu/dickey/Bloodworth/mypage.htm

Lots O' Links Math Resources The Math Forum A great resource for all things math. Check out especially the "Ask Dr. Math" section. Math FAQ The collected wisdom of the Internet is organized into lists of frequently asked questions (FAQs). Perhaps a little technical, the math FAQ is still a godd resource for those "I was wondering..." type questions. MATHCOUNTS The middle school math competition. For those who don't think recreational mathematics is an oxymoron. Recreational Mathematics Speaking of recreational math, here's a great jumping off point for finding lots of rec math sites. Computer Resources Dr. Geo Free dynamic geometry software for Linux. SEUL-EDU More educational software for Linux. Slashdot.Org News for Nerds. Stuff that Matters. Geek news and talk. LEGO Mindstorms LEGOs. Computers. Robots. Drool. MSWLogo LOGO is a great first programming language for students. MSWLogo is a free, full-featured version for Windows 95. Other Work ALERT Gifted and talented program in Richland 2. I'm the webmaster. Not complete yet, but enjoy the spinning apple. Pathways Program I used to webmaster this server for the SC Department of Education Fun Stuff The Onion Hilarious news parody. Rated NC-17. You've been warned.

68. SPECIAL EDUCATION COURSES It will also focus on recreational math and the implementation of basic math sensein everyday living. 924 Learning Center Biology Full Year 5 credits 10. http://pilgrims.net/plymouth/schools/guidance/Course_Selection/SPEDPSHS.html

SPECIAL EDUCATION COURSES Plymouth South 911 Learning Center English 1 Full Year 5 credits This course provides the basic English requirements for a first year English program. It will focus on many types of literature and provide students with practice in reading, writing and speaking to improve their basic skills. Vocabulary development, comprehension and practice writing unified paragraphs are integral parts of this course. Learning Center World Studies 1 Full Year 5 credits This course is the first part of a two-year World Civilization program. It traces World History and Geography from the First Civilizations to c. 1815. Students will develop knowledge through the construction of a travel guide through these times. Customs, traditions and world contributions will be included. 913 Learning Center Pre-Algebra Full Year 5 credits This course is for students in grade 9 who have gained competence in basic math skills. Starting and maintaining savings and checking accounts, developing daily living skills and reviewing basic math skills are the major focus. 914 Learning Center Physical Science Full Year 5 credits This course focuses on physical science and how it applies to life experiences.

69. Math Chess - EFront at BCPS library (UK Seek Velucchi) at L'Italia Scacchistica (Chiavi Velucchi,Nel sito L'Italia Scacchistica) at IP in recreational mathematics 6 http://www.velucchi.it/mathchess/

eMail mathchess@velucchi.it fax +39.05061431159 some of my prehistorical Web pages Internet Archive hosted) at : www.cli.di.unipi.it/~velucchi www.geocities.com/SiliconValley/9174 www.geocities.com/CapeCanaveral/8499 www.geocities.com/CapeCanaveral/1904 ... anduin.eldar.org/~problemi bio/bibliographycal notes www.geocities.com/Colosseum/Field/4530/mv.htm leoncini.freeservers.com/velucchi.html www.johnrausch.com/PuzzleCollectors/000000b0.htm www.chessworld.org/V.htm (Seek: Velucchi at Cambridge University Library (UK - Search by Author: Velucchi ) :: at State Library of Victoria (Australia - Search Author: Velucchi ) :: at The On-Line Encyclopedia of Integer Sequences (Enter a Word: Velucchi ) :: at Eric Weisstein's World of Mathematics PDB - Chess Problem Database Server (Enter: A='Velucchi' ) :: at KB - Koninklijke Bibliotheek - National library of the Netherlands (The Hague - NL) :: at .Zip PBM format) :: at BCPS library (UK - Seek: Velucchi ) :: at L'Italia Scacchistica (Chiavi: Velucchi , Nel sito:

70. TeacherSource . Recommended Links . Math | PBS html AHA! Math lovers will enjoy this recreational math site fullof palindromes, puzzles, primes and other curiosities. Some of http://www.pbs.org/teachersource/recommended/rec_links_math.shtm

March 18, 2003 Recommended Links Visit this month's recommendations for some creative resources online! Also, don't miss our extensive archive. (Note: These links will open up a new browser window and take you away from PBS Online.) New This Month! Chinese Abacus, Art of Calculation http://members.aol.com/chineseabacus/index.html After an introduction in the concept of the beads and columns, and how it relates to the decimal system of single digits, tens digits, and so on, you’ll have the basic understanding of how an abacus works. Use the cyber abacus to try adding, subtracting, multiplying and dividing with beads. Instructions for each operation are given, along with practice exercises. The site is primarily for teachers to use to teach, but students can also follow the directions in the lessons. For images of many real abacuses, see http://www.alohama.com/abmuseum/index.shtml, the Abacus Museum. GetTech.org http://www.gettech.org/ Technology is part of all of our daily lives. Test your tech IQ related to technology careers by taking the quiz to find out a variety of jobs are in the technology field. In addition to science careers, math related technology careers include computer programming, manufacturing, and engineering. Each career has information about the type of work involved, education required, and other facts about the job. There is a teacher’s guide in PDF format which includes lesson plans and ideas for how to use this site which intends to get middle and high school students interested in a variety of technology careers. The multimedia version requires Flash.

71. Math Magic recreational math Sites Mike Keith Kevin Brown Harvey Heinz George Jelliss World of Numbers Powers Fibonacci Primes Polyforms More http://www.stetson.edu/~efriedma/mathmagic/

Math Magic is a web site devoted to original mathematical recreations. If you have a math puzzle, discovery, or observation, please e-mail me about it. You can also send answers to the problem of the month. Problem of the Month Archive Problem of the Month (March 2003) A polyhex is an edge-connected union of unit hexagons. While polyhexes cannot tile a triangle, they can sometimes tile a triangle of hexagons. Here are some small polyhexes and their smallest non-trivial triangle tilings: What other triangles do these polyhexes tile? What are the smallest triangle tilings of other polyhexes? Submit your answers here . Answers will be posted next month. Weekly Puzzle Sites: MathPuzzle.com Ken Duisenberg NPR Primrose ... Barry R. Clarke Other Puzzle Sites: IBM MathSoft Retrograde Analysis Contest Center ... Puzzle Palace Interactive Puzzle Sites: Sliding Blocks Mazes More Mazes Lunar Lockout ... Paint By Numbers Colleges with Puzzles: Macalester S. Missouri Bradley Knox ... Hamline Great Math Sites: Geometry Junkyard Integer Sequences Inverse Calculator Mathematicians ... Numbers With Names Recreational Math Sites: Mike Keith Kevin Brown Harvey Heinz George Jelliss ... What's Special About This Number?

72. The Diamond 16 Puzzle New version of the classic puzzle using row/column/quadrant permutations to display symmetries of Category Science Math Recreations...... Binary Arts Puzzler's Tour Advanced Math Fields page at Binary Arts Puzzles.comsite Canadian Mathematical Society recreational math page Madras College http://m759.freeservers.com/puzzle.html

The Diamond 16 Puzzle Change the pair of patterns at right to any of the pairs at left. (The original pair is at top left.) To change the patterns, click on a row, then click on the row you want to move it to. Do the same for other rows and/or columns and/or quadrants. Each pattern you make has some ordinary or color-interchange symmetry. For the mathematics behind this invariance of symmetry, see Diamond Theory . For a somewhat more user-friendly version of the puzzle, see Alexei Vernitski's 16 site. Rows Quadrants Columns If the pictures change too slowly, try holding down the Alt key and pressing the left arrow key, then the right arrow key, then releasing the Alt key (or, equivalently, paging back, then forward). The above mathematical puzzle is suitable for those as young as 12. Older readers may appreciate the following, linked here in honor of Seurat's Dec. 2 birthday: Notes on Literary and Philosophical Puzzles "All art — symphonies, architecture, novels — it’s all puzzles. The fitting together of notes, the fitting together of words have by their very nature a puzzle aspect.

73. George Markowsky Numerical TicTac-Toe I J. of recreational math., Vol. 22, No. 2, 1990, pp. 114-123.Numerical Tic-Tac-Toe II J. of recreational math., Vol. 23, No. http://www.umcs.maine.edu/~markov/papers.html

Research Papers My goal is to eventually put as many papers on my web site as possible. In the meantime, If you would like a copy of one of them send e-mail to: markov@maine.edu Cardinalities of D-Classes in B n Semigroup Forum 4, 1972, 341-344 (with Brandon, Butler, Hardy). The Schutzenberger Group of an H-Class in the Semigroup of Binary Relations Semigroup Forum 5, 1972, 45-53 (with Brandon, Hardy). Indempotents and Product Representations with Applications to the Se roup of Binary Relations Semigroup Forum The Number of Maximal Subgroups of the Semigroup of Binary Relations Kyungpook Math J. , 12, June 1972, 1-8 (with Butler). The Number of Maximal Subgroups of the Semigroup of Binary Relations II Kyungpook Math J. , 12, December 1972, 199-211 (with Butler). Enumeration of Finite Topologies Proc. 4th S. E. Conference on Combinatorics, Graph Theory and Computing , Boca Raton, 1973, 169-184 (with Butler). Some Combinatorial Aspects of Lattice Theory Proc. Univ. of Houston Lattice Theory Conf. The Number of Partially Ordered Sets II J. Korean Math. Soc.

74. Dover Subject Page Math Books From Dover recreational math. Return to the Dover SubjectList. Return to the Mathematics OnLine Bookshelf Home Page http://www.mathbookshelf.com/DOVER/FUN.htm

75. SearchEdu.com - Velucchi Some numerical coincidences and noncoincidences Sumfun, .Davie, St. AndrewsU. Mario Velucchi's links to recreational math, chess problems, http://www.searchedu.com/cgi-bin/search.dll?q=velucchi

76. Recreational Mathematics The Lighter Side of Mathematics Proceedings of the Eugène Strens Memorial Conferenceon recreational mathematics and its History. Washington, DC Math. http://www.ericweisstein.com/encyclopedias/books/RecreationalMathematics.html

Recreational Mathematics see also General Mathematics Magic Squares Mathematics Problems Numbers ... Puzzle Ahrens, W. Mathematische Unterhaltungen und Spiele, 2 vols. Vol. 1, 3rd ed. Vol. 2, 2nd ed. Leipzig: B. G. Teubner, 1921 and 1918. Altshiller Court, Nathan. Mathematics in Fun and Earnest. New York: Dial Press, 1958. Bachet, Claude Gaspar. Bakst, Aaron. Mathematical Puzzles and Pastimes. New York: Van Nostrand, 1954. 206 p. Out of print. Bakst, Aaron. Mathematics: Its Magic and Mystery, 3rd ed. Princeton, NJ: Van Nostrand, 1967. 842 p. Out of print. Ball, Walter William Rouse and Coxeter, Harold Scott Macdonald. Mathematical Recreations and Essays. New York: Dover, 1987. Excellent!! An all-time classic (although now slightly out-of-date) at a bargain-basement price. $8.95. Barr, Stephen. Second Miscellany of Puzzles-Mathematical and Otherwise. London: Macmillan, 1969. 224 p. $6.95. Barr, Stephen. Intriguing Puzzles in Math and Logic. New York: Dover, 1994. 164 p. $5.95. Beck, Anatole; Bleicher, Michael N.; and Crowe, Donald W.

77. Introduction To Visual Brainstorms 2 Article During the past few decades there has been an increasing recognition by teachersthat recreational math puzzles, games, paradoxes, magic tricks - is one of http://www.puzzles.com/DeepThought/Articles/VisualBS2Intro.htm

Visual Brainstorms 2* by Martin Gardner e are living in a time when good, fundamentally sound education is essential to our future. The onset of the information age presents entirely new challenges to us as a society in the 21st century. Both children and adults are being asked to adapt to new technologies, to learn new skills, and to think in new and smart ways. Clever brainteasers such as those found in the Visual Brainstorms cards are designed to introduce you to smart ways to think. Kids will have fun learning while chuckling at the amusing way the questions are illustrated; teachers will enjoy the variety of problems to present to inquiring minds; and adults will discover that they are often on common ground with their younger counterparts as they struggle to organize their thoughts and arrive at a solution to the question. As you will find, Visual Brainstorms 2** will spark your own curious mind to think in new ways and to join in the celebration of learning. Here is an overview of all the places this deck will take you on your journey of learning, as well as a few comments on the connections the cards make to today's evolving world of math and science.

78. Mathematica Information Center: The Mathematical Explorer The Mathematical Explorer, Mathematical, Explorer, recreational math, recreationalmathematics, math topics, mathematical topics, math history, journey to the http://library.wolfram.com/database/TechNotes/4572/

All Collections Articles Books Conference Proceedings Courseware Demos MathSource: Packages and Programs Technical Notes Title The Mathematical Explorer Author Wolfram Research, Inc. Organization: Wolfram Research, Inc. Address: 100 Trade Center Dr. Champaign, IL 61820 Phone: Fax: Email: infocenter@wolfram.com URL: http://www.wolfram.com/ Description Explore some of the most fascinating topics in mathematics, from ancient Greece up to the 21st century. Walk in the computational footsteps of history's greatest mathematicians, and discover the answers to many of their most perplexing questions, as The Mathematical Explorer introduces you to some of the stories and faces behind the math. Based on Mathematica technology, this stand-alone product mixes text, graphics, and formulas in a friendly, easy-to-use interface that is completely interactive, making you a participant and not just a spectator to mathematical ideas. The Mathematical Explorer invites you to explore many interesting questions about both physical and abstract phenomena and to gain insight by computation and visualization. Topics discussed in The Mathematical Explorer include: Prime Numbers: The Mysterious and Beautiful Sequence for 2, 3, 5...

79. Internet Center For Mathematics Problems This is a bulletin board that discusses a wide variety of math puzzles.They occasionally hold recreational math Puzzle Conferences. http://www.mathpropress.com/mathCenter.html

Internet Center for Mathematics Problems On this page, we try to identify and list all sources of mathematics problems on the Internet and related information. Please advise us if you know of any sources that we are missing. Table of Contents Problem Columns from Mathematics Journals The Fibonacci Quarterly Mathematics and Informatics Quarterly (coming soon) Missouri Journal of Mathematical Sciences Problem Columns on the World Wide Web Mathematics Problems on the World Wide Web Newsgroups ... Sign-in We invite you to visit the MathPro Press home page Problem Columns from Mathematics Journals Many mathematics journals contain problem columns. They invite readers to send in solutions to the problems. The best solution submitted gets printed in a future issue along with the names of all the solvers. We list below only a few of the journals that are currently running problem columns. You are welcome to try your hand at solving these problems. Solutions should be sent to the appropriate problem column editor ( not to MathPro Press).

80. Serials And Journals Database J. recreational math. Journal of recreational mathematics.Baywood Publishing Company, Inc., Amityville, NY. http://www.zblmath.fiz-karlsruhe.de/MATH/serials/zbl/journals/all/j/dir?query_st

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