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Search: id:A051931
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A051931 Number of independent sets of nodes in graph K_6 X C_n (n > 2). +0
1
7, 1, 43, 229, 1447, 8881, 54763, 337429, 2079367, 12813601, 78961003, 486579589, 2998438567, 18477210961, 113861704363, 701647437109, 4323746327047, 26644125399361, 164188498723243, 1011775117738789, 6234839205156007 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n) = 5*a(n-1) + 7*a(n-2) + a(n-3)

CROSSREFS

Sequence in context: A147482 A050402 A027643 this_sequence A038267 A027466 A075502

Adjacent sequences: A051928 A051929 A051930 this_sequence A051932 A051933 A051934

KEYWORD

easy,nonn

AUTHOR

Stephen G. Penrice (spenrice(AT)ets.org), Dec 19 1999

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Dec 20 1999

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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