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Search: id:A084266
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A084266 Binomial transform of A084265. +0
3
1, 3, 11, 34, 96, 256, 656, 1632, 3968, 9472, 22272, 51712, 118784, 270336, 610304, 1368064, 3047424, 6750208, 14876672, 32636928, 71303168, 155189248, 336592896, 727711744, 1568669696, 3372220416, 7230980096, 15468593152, 33017561088 (list; graph; listen)
OFFSET

0,2

FORMULA

E.g.f.: exp(x)cosh(x)+exp(2x)(2x+x^2/2); a(n)=0^n/2+2^n(n^2+7n+4)/8.

a(n)=Sum_{k, 0<=k<=n-1}a(k)+(n+2)*2^(n-1)-1. - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jul 12 2007

CROSSREFS

Sequence in context: A018413 A004662 A036542 this_sequence A052471 A037496 A134326

Adjacent sequences: A084263 A084264 A084265 this_sequence A084267 A084268 A084269

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 31 2003

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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