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A234603 Numbers of undirected cycles in the n X n black bishop graph. 3
2, 53, 12424, 12300529, 504040211574, 84649132742336262, 1080241691057266946999792 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

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, Graph Cycle

CROSSREFS

Cf. A234630, A234636, A234624, A282889, A234632.

Sequence in context: A176943 A176946 A265443 * A087865 A278843 A083471

Adjacent sequences:  A234600 A234601 A234602 * A234604 A234605 A234606

KEYWORD

nonn,hard,more

AUTHOR

Eric W. Weisstein, Dec 28 2013

EXTENSIONS

a(7) from Eric W. Weisstein, Jan 04 2014

a(3) prepended and a(8)-a(9) from Andrew Howroyd, May 08 2017

STATUS

approved

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Last modified April 7 08:50 EDT 2020. Contains 333300 sequences. (Running on oeis4.)