OFFSET
0,2
LINKS
Ed Wynn, Enumeration of nonisomorphic Hamiltonian cycles on square grid graphs, arXiv preprint arXiv:1402.0545 [math.CO], 2014.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 05 2014
EXTENSIONS
a(5)-a(7) from Andrew Howroyd, Apr 06 2016
STATUS
approved