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Search: id:A091482
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A091482 (3*n)^n. +0
1
1, 3, 36, 729, 20736, 759375, 34012224, 1801088541, 110075314176, 7625597484987, 590490000000000, 50542106513726817, 4738381338321616896, 482880748567480579719, 53148384174432398229504 (list; graph; listen)
OFFSET

0,2

MAPLE

restart:a:=n->mul(3*sum(1, j=0..n), k=0..n): seq(a(n), n=-1..13); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 01 2009]

CROSSREFS

Sequence in context: A068177 A099670 A006587 this_sequence A121245 A144758 A122220

Adjacent sequences: A091479 A091480 A091481 this_sequence A091483 A091484 A091485

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Jan 13 2004

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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