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A282889 Number of directed Hamiltonian cycles on the n X n black bishop graph. 3
0, 8, 1408, 1106016, 27605259264, 3564317860276224, 28463849350128000663552 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..9.

Eric Weisstein's World of Mathematics, Black Bishop Graph

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

CROSSREFS

Cf. A282890 (numbers of Hamiltonian cycles in an n X n white bishop graph)

Sequence in context: A160103 A283902 A064073 * A225068 A270145 A201492

Adjacent sequences:  A282886 A282887 A282888 * A282890 A282891 A282892

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, Feb 24 2017

EXTENSIONS

a(9) from Andrew Howroyd, May 06 2017

STATUS

approved

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Last modified October 18 08:08 EDT 2019. Contains 328146 sequences. (Running on oeis4.)