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A289901 Number of (undirected) cycles in the n-triangular honeycomb acute knight graph. 1
0, 0, 0, 2, 9, 30, 103, 435, 2469, 18958, 194091, 2661243, 49287232 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..13.

Eric Weisstein's World of Mathematics, Graph Cycle

CROSSREFS

Cf. A290331 (number of undirected paths).

Sequence in context: A192518 A277241 A201164 * A261330 A101604 A234007

Adjacent sequences:  A289898 A289899 A289900 * A289902 A289903 A289904

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Jul 14 2017

STATUS

approved

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Last modified September 20 00:58 EDT 2021. Contains 347577 sequences. (Running on oeis4.)