A282889 Number of directed Hamiltonian cycles on the n X n black bishop graph.

0, 8, 1408, 1106016, 27605259264, 3564317860276224, 28463849350128000663552

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