OFFSET
3,4
COMMENTS
LINKS
Alexander Rosa and Štefan Znám, A combinatorial problem in the theory of congruences. (Russian), Mat.-Fys. Casopis Sloven. Akad. Vied 15 1965 49-59. [Annotated scanned copy]
MAPLE
See A262568.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Oct 20 2015
EXTENSIONS
More terms from R. J. Mathar, Oct 21 2015
STATUS
approved