OFFSET
1,4
COMMENTS
LINKS
R. J. Nowakowski, Generalizations of the Langford-Skolem problem, M.S. Thesis, Dept. Math., Univ. Calgary, May 1975. [Scanned copy, with permission.]
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 09 2017
STATUS
approved