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A175129 a(n) = 3^sum_{i=0..n-1}=product_{i=1..n-1} a(0)=1 a(1)=3 0
1, 3, 9, 27, 729, 531441, 282429536481, 79766443076872509863361, 6362685441135942358474828762538534230890216321 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Except for first three terms, a(n) = (a(n-1))^2

Except for first three terms a(n) = 27^2^n

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A300981 A018924 A061582 * A102558 A022767 A015638

Adjacent sequences:  A175126 A175127 A175128 * A175130 A175131 A175132

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto, Feb 17 2010

STATUS

approved

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Last modified June 6 04:15 EDT 2020. Contains 334859 sequences. (Running on oeis4.)