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A308129 Number of (undirected) Hamiltonian paths on the n X n king graph. 4
0, 12, 392, 171592, 364618672, 6544911081900, 829555065360355292, 817534730458899350635436, 6154392250018061759082363305112, 360916610325065945171647827293872547848, 165298493343313203241690299664254975948394404072 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

Eric Weisstein's World of Mathematics, Hamiltonian Path

Eric Weisstein's World of Mathematics, King Graph

FORMULA

a(n) = A158651(n)/2.

CROSSREFS

Cf. A158651.

Sequence in context: A187513 A138914 A326220 * A286038 A276482 A202788

Adjacent sequences:  A308126 A308127 A308128 * A308130 A308131 A308132

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, May 14 2019

STATUS

approved

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Last modified October 23 13:32 EDT 2021. Contains 348214 sequences. (Running on oeis4.)