Contents of Volume 26, "Journal of Recreational Mathematics"

Contents of Volume 26, Journal of Recreational Mathematics

Number 1

“The Primes of a Certain Pentacube,” by Karl Scherer

“Unsymmetrical N-Dimensional Binary Colorings,” by Ken Shirriff

“Partition Graphs for Consecutive Integer Sums,” by Clifford A. Pickover

“Additional Remarks Concerning the Gregorian Calendar, IV,” by R. M. Sternheimer

“The Star Field Problem,” by John Caffrey

“Lower Polyominoes on a Checkerboard,” by P. J. Torbijn and Jean Meeus

“Some Results Regarding the Equation m.n = n/m,” by Carl Yao, Lior Kadosh and David E. Rush

“Probably the Greatest Hitter Who Ever Lived,” by Paul M. Sommers
How to Make Your Bed of Nails and Successfully Lie In It,” by Charles Ashbacher

“Palindromic Sophie Germain Primes,” by Harvey Dubner

“The Probability of Breaking Sports Records,” by Aaron Brown

Book Reviews, edited by Charles Ashbacher

Alphametics and Solutions to 25(1) Alphametics, edited by Steven Kahan

Errata

Problems and Conjectures, edited by Joseph S. Madachy

Solutions to Problems and Conjectures, edited by Joseph S. Madachy

Solvers’ List

Number 2

“Making Polyominoes,” by P. J. Torbjin

Letter to the Editor (Magic Asteroids), from Allan William Johnson, Jr.

“The Regular Tetrahedron and the Cube,” by Charles W. Trigg

“A Property of Some Pan-3-Agonal Magic Cubes of Odd Order,” by John R. Hendricks

“There Are No Double Smooth Undulating Integers in Both Decimal and Binary Representations,” by D. F. Robinson

“Comments on Multiple Smoothly Undulating Integers in Both Decimal and Binary Representations,” by Benjamin L. Schwartz

“Smoothly Undulating Integers in More Than One Base,” by Charles Ashbacher

“More on Multiple Smoothly Undulating Integers,” by Benjamin L. Schwartz

“Undulating Undecamorphic and Undulating PseudoFareymorphic Integers,” by Clifford A. Pickover

Letters to the Editor (Gleichniszahlen-Reihe), from George E. Martin and John Dawes

“The Hebrew Calendar,” by Hyman Gabai

“Was 5754 a Lucky Year?” by Hyman Gabai

“The Diophantine Equation A!B! = C!” by Chris Caldwell

“The Cancer Game,” by Clifford A. Pickover

Book Reviews, edited by Charles Ashbacher

Errata

Alphametics and Solutions to 25(2) Alphametics, edited by Steven Kahan

Letter to the Editor (Sum and Difference Perfect Squares), from Charles Ashbacher

Problems and Conjectures, edited by Joseph S. Madachy

Solutions to Problems and Conjectures, edited by Joseph S. Madachy

Solvers’ List

Number 3

“A Solitaire Pebble Game,” by Benjamin L. Schwartz

“Additional Remarks Concerning the Gregorian Calendar, V,” by R. M. Sternheimer

“Prime Partitions,” by Steven Kahan

REPFIGIT NUMBERS

  “All Repfigit Numbers Less Than 100 Billion (10^11),” by Michael Keith

  “Finding Repfigits – A New Approach,” by Bill Heleen

  “All Known Replicating Fibonacci Digits Less Than One Thousand Billion (10^12),”

  by Nicholas M. Robinson

  “Computing Replicating Fibonacci Digits,” by Ken Shirriff

  “Non-Decimal Replicating Fibonacci Digits,” by Harold A. Esche

  Table: Repfigit Numbers (Base 10) Less Than 10^15

“Mathematical Jeopardy – The Series (Part 1 of 2),” by Barnabas Hughes

“The Sign of the Devil . . . and the Sine of the Devil,” by Steve C. Wang

Book Reviews, edited by Charles Ashbacher 

Alphametics and Solutions to 25(3) Alphametics, edited by Steven Kahan

Problems and Conjectures, edited by Joseph S. Madachy

Solutions to Problems and Conjectures, edited by Joseph S. Madachy

Solvers’ List

Number 4

“Palindromic Primes with a Palindromic Prime Number of Digits,” by Harvey Dubner

“Some Observations on Reversed Numbers and Palindromes,” by Clifford A. Pickover

“ A Note on Integer Normal Triangles,” by Martin Beech

“Mathematical Jeopardy – The Series (Part 2 of 2),” by Barnabas Hughes

“Primer on Palindromes,” by Rudolf Ondrejka and Harvey Dubner

“Quantifying Order in Plane Separation Problems,” by Anthony J. Macula and Cynthia Musante

“Ticket Prices and Player Salaries in Major League Baseball,” by Paul M. Sommers

“The Orthocenter of a Triangle and Some of Its Properties,” by Boris Pritsker

“Tee Tests,” by Brian E. Smith and Paul M. Sommers

“Evariste Galois (Poem),” by Hyman Gabai

Book Reviews, edited by Charles Ashbacher

Alphametics and Solutions to 25(4) Alphametics, edited by Steven Kahan

Problems and Conjectures, edited by Joseph S. Madachy

Letters to the Editor

Solutions to Problems and Conjectures, edited by Joseph S. Madachy

Solvers’ List