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Search: id:A084859
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A084859 Binomial transform of Cullen numbers A002064. +0
3
1, 4, 16, 62, 232, 842, 2980, 10334, 35248, 118610, 394684, 1301126, 4255624, 13825658, 44657428, 143521838, 459230560, 1463719586, 4649308012, 14722502870, 46491507256, 146447041994, 460259735236, 1443537130622 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=2^n+2n*3^(n-1); a(n)=sum{k=0..n, C(n, k)(1+k*2^k) }.

O.g.f.: (1-4x+5x^2)/[(1-2x)(-1+3x)^2]. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 02 2008

CROSSREFS

Cf. A004277.

Sequence in context: A126929 A133161 A103820 this_sequence A081666 A085781 A113438

Adjacent sequences: A084856 A084857 A084858 this_sequence A084860 A084861 A084862

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jun 12 2003

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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