A222065 a(n) = A143246(2n).

2, 12, 2144, 9277152, 934520913216, 2152453777211211412, 112252999240982874562527216, 131765033045251672652319572331061144, 3467852755777932367855581588111341658695967892

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Ed Wynn, Enumeration of nonisomorphic Hamiltonian cycles on square grid graphs, arXiv preprint arXiv:1402.0545 [math.CO], 2014.

Index entries for sequences related to graphs, Hamiltonian

Crossrefs

Sequence in context: A085895 A090904 A125295 * A253788 A252738 A360067

Adjacent sequences: A222062 A222063 A222064 * A222066 A222067 A222068

Keyword

nonn

Author

N. J. A. Sloane, Feb 08 2013

Status

approved