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A003749 Number of Hamilton cycles in K_5 X P_n. +0
1
12, 480, 13440, 382080, 10859520, 308651520, 8772556800, 249335408640, 7086662123520, 201418564362240, 5724759747624960, 162710295705845760, 4624585396735180800, 131440914657055211520, 3735840635158368092160 (list; graph; listen)
OFFSET

1,1

LINKS

F. Faase, Counting Hamilton cycles in product graphs

FORMULA

a(n) = 28a(n-1) + 12a(n-2), n>2.

CROSSREFS

Adjacent sequences: A003746 A003747 A003748 this_sequence A003750 A003751 A003752

Sequence in context: A121348 A112363 A089956 this_sequence A012395 A012687 A012467

KEYWORD

nonn

AUTHOR

Frans Faase (Frans_LiXia(AT)wxs.nl)

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.


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