A222065 - OEIS

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A222065

a(n) = A143246(2n).

5

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

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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