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A143249 Number of (directed) Hamiltonian circuits in the n-th order Anrásfai graph. 0
0, 2, 10, 290, 17394, 2218778, 473405802, 163347720914, 83473085624962, 61000324824203498 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

Eric Weisstein's World of Mathematics, Andrásfai Graph

Eric Weisstein's World of Mathematics, Hamiltonian Cycle

CROSSREFS

Sequence in context: A028580 A171873 A098706 * A161181 A073834 A111837

Adjacent sequences:  A143246 A143247 A143248 * A143250 A143251 A143252

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Aug 01, 2008

EXTENSIONS

a(7) from Eric W. Weisstein, Dec 16 2013

a(8) from Eric W. Weisstein, Dec 23 2013

a(9) from Eric W. Weisstein, Dec 26 2013

a(10) from Eric W. Weisstein, Apr 08 2014

STATUS

approved

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Last modified October 22 19:18 EDT 2014. Contains 248400 sequences.