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Search: id:A056118
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A056118 A second order recursive sequence. +0
1
1, 16, 81, 266, 686, 1512, 2982, 5412, 9207, 14872, 23023, 34398, 49868, 70448, 97308, 131784, 175389, 229824, 296989, 378994, 478170, 597080, 738530, 905580, 1101555, 1330056, 1594971, 1900486, 2251096, 2651616, 3107192, 3623312 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=[11n+5]*C(n+4, 4)/5. G.f.(x)=(1+10x)/(1-x)^6.

CROSSREFS

Cf. A055268.

Sequence in context: A075578 A113316 A113317 this_sequence A134606 A108941 A113849

Adjacent sequences: A056115 A056116 A056117 this_sequence A056119 A056120 A056121

KEYWORD

easy,nonn

AUTHOR

Barry E. Williams, Jul 04 2000

page 1

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Last modified July 4 18:25 EDT 2008. Contains 140886 sequences.


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