OFFSET
1,1
LINKS
S. N. Ethier, Counting toroidal binary arrays, arXiv preprint arXiv:1301.2352, 2013 and J. Int. Seq. 16 (2013) #13.4.7.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 12 2013
EXTENSIONS
More terms from Michel Marcus, Feb 13 2013
STATUS
approved