0,2
Table of n, a(n) for n=0..7.
Ed Wynn, Enumeration of nonisomorphic Hamiltonian cycles on square grid graphs, arXiv preprint arXiv:1402.0545 [math.CO], 2014.
Cf. A003763.
Sequence in context: A349982 A209185 A216608 * A110899 A281126 A220940
Adjacent sequences: A238816 A238817 A238818 * A238820 A238821 A238822
nonn
N. J. A. Sloane, Mar 05 2014
a(5)-a(7) from Andrew Howroyd, Apr 06 2016
approved