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A234636
Numbers of undirected cycles in the n X n bishop graph.
2
0, 3, 106, 17367, 24601058, 638520866656, 169298265484672524, 1292856744880357036357430
OFFSET
2,2
LINKS
Eric Weisstein's World of Mathematics, Bishop Graph
Eric Weisstein's World of Mathematics, Graph Cycle
FORMULA
a(n) = A234603(n) + A234630(n).
CROSSREFS
Sequence in context: A226074 A037115 A343214 * A213862 A245657 A139921
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Dec 28 2013
EXTENSIONS
a(7) corrected and a(8)-a(9) from Andrew Howroyd, May 08 2017
STATUS
approved