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Search: id:A094618
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A094618 3^(n+1) - 2^(n+1) + n + 1. +0
2
2, 7, 22, 69, 216, 671, 2066, 6313, 19180, 58035, 175110, 527357, 1586144, 4766599, 14316154, 42981201, 129009108, 387158363, 1161737198, 3485735845, 10458256072, 31376865327, 94134790242, 282412759289, 847255055036 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n)=2a(n-1)+1-n+3^n, a(0)=2

CROSSREFS

Row sums of A094617.

Cf. A094617.

Sequence in context: A071684 A060816 A037552 this_sequence A077833 A106438 A109999

Adjacent sequences: A094615 A094616 A094617 this_sequence A094619 A094620 A094621

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), May 14 2004

EXTENSIONS

New definition from Ralf Stephan, Dec 01, 2004

page 1

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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