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A308586 Number of (undirected) Hamiltonian paths on the n X n X n grid graph. 0
0, 72, 2480304, 27746717207772000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..4.

Eric Weisstein's World of Mathematics, Grid Graph

Eric Weisstein's World of Mathematics, Hamiltonian Path

FORMULA

a(n) = A193346(n)/2.

CROSSREFS

Cf. A193346 (directed Hamiltonian paths).

Sequence in context: A028671 A261815 A159440 * A113889 A099191 A051325

Adjacent sequences:  A308583 A308584 A308585 * A308587 A308588 A308589

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, Jun 09 2019

STATUS

approved

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Last modified June 28 19:10 EDT 2022. Contains 354907 sequences. (Running on oeis4.)