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Search: id:A013828
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A013828 3^(5n+3). +0
1
27, 6561, 1594323, 387420489, 94143178827, 22876792454961, 5559060566555523, 1350851717672992089, 328256967394537077627, 79766443076872509863361, 19383245667680019896796723, 4710128697246244834921603689 (list; graph; listen)
OFFSET

0,1

LINKS

Tanya Khovanova, Recursive Sequences

FORMULA

a(n)=243*a(n-1), n>0 ; a(0)=27 . G.f.: 27/(1-243*x). a(n)=3*A013827(n)= 9*A013826(n)=A013829(n)/3 . [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 30 2008]

CROSSREFS

Sequence in context: A059795 A123395 A051680 this_sequence A001321 A111415 A036534

Adjacent sequences: A013825 A013826 A013827 this_sequence A013829 A013830 A013831

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.


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