A165624 a(n) = 3^(3^n)/(3^n)^3.

3, 1, 27, 387420489, 834385168331080533771857328695283, 6076396096647706909168138770838836135530328017648434830996201971201776350890241322455818405320466786549738961

Offset

0,1

Links

Table of n, a(n) for n=0..5.

Formula

a(n) = 3^A107583(n). [R. J. Mathar, Oct 07 2009]

Example

a(0) = 3^1/1^3 = 3. a(1) = 3^3/3^3 = 1. a(2) = 3^9/9^3 = 27.

Mathematica

Table[3^(3^n)/(3^n)^3, {n, 0, 6}] (* Harvey P. Dale, Sep 17 2019 *)

Crossrefs

Cf. A007758, A165623

Sequence in context: A270289 A344037 A260902 * A287206 A288517 A188110

Adjacent sequences: A165621 A165622 A165623 * A165625 A165626 A165627

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Sep 22 2009

Extensions

Definition simplified by R. J. Mathar, Oct 07 2009

Status

approved