Contents of "Journal of Recreational Mathematics" Volume 12, 1979-80

Contents of Journal of Recreational Mathematics Volume 12, 1979-80

Number 1

Editor’s Page, by Harry L. Nelson

“L-Play is a Draw,” by Karl Scherer

“Repdigit Polygonal Numbers,” by Michael Keith

“Exploring the Planiverse,” by A. K. Dewdney

“The Magic of Pi,” by Monte Zerger

“Mama-thematics,” by Charles W. Trigg

“On ‘LEGO’ Towers,” by P. J. S. Watson

“Ratios of Sequential Digit Numbers,” by Se June Hong and Daniel L. Ostapko

“Magic Math – A New Dice Toy,” by Benjamin L. Schwartz

“Fibonoid Sequences Modulo m,” by Henry A. Kierstead

Alphametics and Solutions to 11(1) Alphametics, edited by Steven Kahan

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn and Romae Cormier

“The Persistent Difference,” Israel Cohen

Solvers List

“Occasional MatheMADics,” by Charles W. Trigg

Number 2

“Treating 1978 in an Orderly Manner,” by C. S. Metchette

“An Acute Analysis of an Obtuse Problem from a New Angle,” by Henry A. Kierstead

Errata

“Rational Geometric Dissections of Convex Polygons,” by David M. Collison

Letter to the Editor, by Henry A. Kierstead

“Subdividing a Box into Completely Incongruent Boxes,” by William H. Cutler

“The Duffinian Numbers,” by L. Richard Duffy

More Errata

“Generalization of the 64/16 Problem,” by R. P. Boas

“Some Related Prime Sequences,” by Charles W. Trigg

Book Reviews, edited by Charles W. Trigg

“Some New Results on a Shuffling Problem,” by James O. Achugbue and Francis Y. Chin

Alphametics and Solutions to 11(2) Alphametics, edited by Steven Kahan

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn and Romae Cormier

“Solutions to Two ‘Old’ Problems,” by Paul Erdös

Number 3

“Problem Editor’s Page,” by F. Kierstead

“Inside Out Dissections,” by David M. Collison

“The Icosahedron and Tangled Tetrahedron,” by Henry Lulli

“Queen Squares,” by David A. Klarner

“On the Problem of Reflecting Queens,” by Yukio Kusaka

“Tell All the Lies You Want – Liars Never Win,” by Paul Hartung

“The Powers of 37,” by Charles W. Trigg

“Island of Five Color Tribes,” by Makoto Arisawa and Takeshi Nakajima

“The Fibonacci Series in the Decimal Equivalents of Fractions,” by Charles F. Winans

“Some New Results on Y-Pentominoes,” by Karl Scherer

Letters to the Editor

Alphametics and Solutions to 11(3) Alphametics, edited by Steven Kahan

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn and Romae Cormier

Solvers List

Plus: Filler Fun on pages: 176, 178, 181, 185, 191, 194, 200, 204, 217, 221, 224, 237

Number 4

“The Duke Checker Program,” by Tom Truscott

“Magic Squares Composed of Consecutive Odd Prime Numbers,” by William H. Benson

“Scrabble Problem,” by Harry Nelson

“A Search for N-Pentacube Prime Boxes,” by David Klarner

“Pirates of Penzance,” by Frank Rubin

“Sharing the Lore,” by John McClellan

“Integers Closed Under Reversal-Subtraction,” by Charles W. Trigg

Quickies

“On the Digital Root Series,” by V. Sasi Kumar

“A Theorem Concerning Octagonal Numbers,” by William J. O’Donnell

“Generalized Fractured Fractions,” by Michael Keith

Letters to the Editor

“Togetherness,” by Charles W. Trigg

Book Reviews, edited by Charles W. Trigg

Alphametics and Solutions to 11(4) Alphametics, edited by Steven Kahan

“Digit Sums of Powers,” by Herman Nijon

Problems and Conjectures, edited by Friend H. Kierstead, Jr.

Solutions to Problems and Conjectures, edited by John Brinn and Romae Cormier

List of Solvers