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A091482 a(n) = (3*n)^n. 2
1, 3, 36, 729, 20736, 759375, 34012224, 1801088541, 110075314176, 7625597484987, 590490000000000, 50542106513726817, 4738381338321616896, 482880748567480579719, 53148384174432398229504, 6283298708943145751953125, 794071845499378503449051136 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

FORMULA

E.g.f.: 1/(1 + LambertW(-3*x)). - Ilya Gutkovskiy, Oct 03 2017

MATHEMATICA

Join[{1}, Table[(3 n)^n, {n, 20}]] (* Vincenzo Librandi, Jun 21 2015 *)

PROG

(MAGMA) [(3*n)^n : n in [0..20]]; // Zaki Khandaker, Jun 21 2015

(PARI) a(n) = (3*n)^n \\ Charles R Greathouse IV, Jun 21 2015

CROSSREFS

Cf. A062971, A091483.

Sequence in context: A241996 A006587 A328122 * A121245 A193754 A173217

Adjacent sequences:  A091479 A091480 A091481 * A091483 A091484 A091485

KEYWORD

nonn,easy

AUTHOR

Christian G. Bower, Jan 13 2004

STATUS

approved

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Last modified August 1 07:45 EDT 2021. Contains 346384 sequences. (Running on oeis4.)