OFFSET
1,1
REFERENCES
W. S. Andrews, Magic Squares and Cubes, pp. 176 Dover NY 1960.
J. Heleen, Journal of Recreational Mathematics, 30(1) 1999-2000 pp. 72-3 Soln. to Prob. 2394. Magic Reciprocals
M. J. Zerger, Journal of Recreational Mathematics, 30(2) 1999-2000 pp. 158-160 Soln. to Prob. 2420. Only 19?
LINKS
H. Heinz, Order-18 based on 1/19
Simon Whitechapel, Reciprocal Arrangements [Internet Archive Wayback Machine]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Simon Whitechapel (aladgyma(AT)yahoo.com), Jun 27 2004
EXTENSIONS
Corrected and extended by William Rex Marshall, Aug 18 2005
STATUS
approved