Contents of Volume 17,

**Journal of Recreational Mathematics**# Number 1

“Unfolding the Tesseract,” by Peter Turney

“The Digits of Tetrahedral Numbers,” by Charles W. Trigg

“Vstpocket Bibliographies No. 4: Recreational Miscellany,”
by William L. Schaaf

“New Unitary Amicable Couples,” by Mariano Garcia

“Tetrahedramorphic Numbers,” by Charles W. Trigg

“Sums of Absolute Differences,” by David R. Richman

“A Game From Sperner’s Lemma,” by Martin Erickson and Frank
Harary

“Pentagonal Permutations of Consecutive Digits,” by Charles
W. Trigg

Alphametics and Solutions to 16(1) 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

Filler Fun

# Number 2

“Tackling a Ticklish Type of Tic-Tac-Toe (or the Case of the
[Almost] Total Tactics) II,” by Ira Rosenholtz

“Perfect Prime Squares,” by Charles W. Trigg

“Vestpocket Bibliographies No. 5: Polyhedra, Topology; Map
Coloring,” by William L. Schaaf

“Hybrid Packings I,” by Craig Collins

“Nine-Digit Digital-Root Magic and Semi-Magic Squares,” by
Charles W. Trigg

Letter to the Editor

“9 and 10 Distinct Digits in Bitriangular Numbers,” by
Charles W. Trigg

Alphametics and Solutions to 16(2) 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 3

“A Study of Olympic Proportions,” by Paul M. Sommers

“The Eleventh Annual Mathematics Olympics,” by Fred C.
Barnett, David L. Sherry and James R. Weaver

“Primes With Reverses that Are Powers,” by Charles W. Trigg

Letter to the Editor: 1729 – More Properties, by Charles W.
Trigg

“Crooked Dice,” by E. Heilbronner

“The Derivation of Linear Recursion Rules from Quadratic
Polynomials Representing Numerous Primes,” by John Michael Schram

Letter to the Editor: 1729 – Still More Properties, by
William L. Plank

“The Fifth Column of the Pascal Triangle,” by Charles W.
Trigg

“Vestpocket Bibliographies No. 6: Sundry Algebraic Notes,”
by William L. Schaaf

Book Reviews, edited by Charles W. Trigg

Alphametics and Solutions to 16(3) Alphametics, edited by
Steven Kahan

Problems and Conjectures, edited by Joseph S. Madachy

Letter to the Editor: Fermat’s Last Theorem and Related
Diophantine Equations, by Barry J. Powell

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

Solvers’ List

# Number 4

“Hybrid Packings II,”
by Craig H. Collins

“1985 Olla-Podrida,” by Charles W. Trigg

“Achievement and Avoidance games on Finite Configurations
with One Color,” by Frank Harary

“The Diamond – A Versatile Rhombus,” by Charles W. Trigg

“Titanic Primes with Consecutive-Like Digits,” by Rudolf
Ondrejka

“Sinkers of the Titanics,” by Samuel Yates

“Six Odd Games: An Analysis of the Midseason Slump of the
Edmonton Oilers,” by Christian T. L. Janssen and R. W. Schutz

“Trimorphic Numbers,” by Charles W. Trigg

“Cracking Safecracker,” by Timothy R. Walsh

Book Reviews, edited by Charles W. Trigg

In Memoriam

Alphametics and Solutions to 16(4) Alphametics, edited by
Steven Kahan

Problems and Conjectures, edited by Joseph S. Madachy

Letter to the Editor

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

Solvers’ List

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