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Search: id:A086093
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A086093 3^n+2n*4^(n-1). +0
1
1, 5, 25, 123, 593, 2803, 13017, 59531, 268705, 1199331, 5301929, 23245819, 101194737, 437801939, 1883831161, 8067412587, 34402785089, 146158028227, 618862711113, 2612502377435, 10998603062161, 46189948719795 (list; graph; listen)
OFFSET

0,2

COMMENT

Binomial transform of A084859. Second binomial transform of Cullen numbers A002064.

FORMULA

G.f.: (1-6x+10x^2)/((1-3x)(1-4x)^2)

CROSSREFS

Sequence in context: A068539 A123871 A078717 this_sequence A099504 A036156 A097756

Adjacent sequences: A086090 A086091 A086092 this_sequence A086094 A086095 A086096

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jul 10 2003

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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