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Search: id:A003770
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A003770 Number of 2-factors in K_4 X P_n. +0
1
3, 42, 474, 5514, 63942, 741786, 8605014, 99822138, 1157982198, 13433121114, 155830324182, 1807702748538, 20970175374006, 243263587212186, 2821968429343638, 32736119315989434 (list; graph; listen)
OFFSET

1,1

LINKS

F. Faase, Counting Hamilton cycles in product graphs

FORMULA

a(n) = 11a(n-1) + 8a(n-2) - 12a(n-3), n>3.

CROSSREFS

Adjacent sequences: A003767 A003768 A003769 this_sequence A003771 A003772 A003773

Sequence in context: A051273 A084512 A084522 this_sequence A097068 A092470 A078601

KEYWORD

nonn

AUTHOR

Frans Faase (Frans_LiXia(AT)wxs.nl)

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.


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