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A036827 26+2^(n+1)*(-13+9*n-3*n^2+n^3). +0
1
0, 2, 34, 250, 1274, 5274, 19098, 63002, 194074, 567322, 1591322, 4317210, 11395098, 29392922, 74350618, 184942618, 453378074, 1097334810, 2626158618, 6222250010, 14610858010, 34032582682, 78693531674, 180757725210, 412685959194 (list; graph; listen)
OFFSET

0,2

REFERENCES

M. Petkovsek et al., A=B, Peters, 1996, p. 97.

FORMULA

a(n)=sum(k=0, n, 2^k*k^3) - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 11 2003

CROSSREFS

Sequence in context: A067130 A064202 A131471 this_sequence A136362 A098531 A092408

Adjacent sequences: A036824 A036825 A036826 this_sequence A036828 A036829 A036830

KEYWORD

nonn

AUTHOR

njas

page 1

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


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