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A307929

Number of (undirected) Hamiltonian cycles in the n X n white bishop graph.

1

0, 1, 4, 396, 553008, 4701600128, 1782158930138112, 3276113857736492040192

(list; graph; refs; listen; history; text; internal format)

OFFSET

2,3

LINKS

Table of n, a(n) for n=2..9.

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

Eric Weisstein's World of Mathematics, White Bishop Graph

FORMULA

a(n) = A282890(n)/2.

CROSSREFS

Sequence in context: A339449 A116031 A115049 * A202172 A349460 A158111

Adjacent sequences: A307926 A307927 A307928 * A307930 A307931 A307932

KEYWORD

nonn,more,hard

AUTHOR

Eric W. Weisstein, May 06 2019

STATUS

approved