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

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

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