OFFSET
1,1
COMMENTS
Except for first three terms, a(n) = (a(n-1))^2.
Essentially the same as A165424. - R. J. Mathar, Feb 21 2010
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..13
FORMULA
MATHEMATICA
Table[If[n<3, n+1, 6^(2^(n-3))], {n, 10}] (* G. C. Greubel, Apr 25 2021 *)
PROG
(SageMath) [2, 3]+[6^(2^(n-3)) for n in (3..10)] # G. C. Greubel, Apr 25 2021
(PARI) a(n) = if(n<=2, n+1, 6^(2^(n-3))) \\ Felix Fröhlich, Apr 25 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Giovanni Teofilatto, Feb 20 2010
EXTENSIONS
Definition corrected by Glenn Tesler, Aug 19 2017
STATUS
approved