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A165624
a(n) = 3^(3^n)/(3^n)^3.
0
3, 1, 27, 387420489, 834385168331080533771857328695283, 6076396096647706909168138770838836135530328017648434830996201971201776350890241322455818405320466786549738961
OFFSET
0,1
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
KEYWORD
nonn
AUTHOR
EXTENSIONS
Definition simplified by R. J. Mathar, Oct 07 2009
STATUS
approved