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Search: id:A003771
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A003771 Number of Hamilton cycles in K_4 X P_n. +0
1
3, 30, 198, 1326, 8886, 59550, 399078, 2674446, 17922966, 120111870, 804937158, 5394336366, 36150480246, 242264688990, 1623551862438, 10880333659086, 72915231888726, 488645955902910, 3274691227542918 (list; graph; listen)
OFFSET

1,1

LINKS

F. Faase, Counting Hamilton cycles in product graphs

FORMULA

a(n) = 7a(n-1) - 2a(n-2), n>2.

CROSSREFS

Sequence in context: A013220 A132413 A032263 this_sequence A121100 A130546 A051133

Adjacent sequences: A003768 A003769 A003770 this_sequence A003772 A003773 A003774

KEYWORD

nonn

AUTHOR

Frans Faase (Frans_LiXia(AT)wxs.nl)

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.


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