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A308141 Number of (undirected) Hamiltonian paths in the n X n rook graph. 0
0, 4, 756, 11197440, 25328684620800, 14303252551164700262400, 2979637719108524426779310260224000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Eric Weisstein's World of Mathematics, Hamiltonian Path

Eric Weisstein's World of Mathematics, Rook Graph

FORMULA

a(n) = A096970(n)/2.

CROSSREFS

Cf. A096970.

Sequence in context: A292306 A319943 A181200 * A284813 A306254 A068112

Adjacent sequences:  A308138 A308139 A308140 * A308142 A308143 A308144

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, May 14 2019

STATUS

approved

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Last modified June 13 20:25 EDT 2021. Contains 345009 sequences. (Running on oeis4.)