A143675 (0, 1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13,..) becomes (0^(1^2), 3^(2^2), 5^(2^3), 7^(2^3), 3^(2^2), 5^(11^2), 2^(3^13),..).

0, 81, 390625, 5764801, 81, 3761581922631320025499956919111186169019729781670680068828005460090935230255126953125

Offset

1,2

Links

Table of n, a(n) for n=1..6.

Example

0^(1^2)=0^1=0=a(1).
3^(2^2)=3^4=81=a(2).
5^(2^3)=5^8=390625=a(3).
7^(2^3)=7^8=5764801=a(4).
3^(2^2)=3^4=81=a(5), etc.

Crossrefs

Cf. A141269, A141270.

Sequence in context: A093227 A187751 A285997 * A033435 A319979 A293149

Adjacent sequences: A143672 A143673 A143674 * A143676 A143677 A143678

Keyword

nonn

Author

Juri-Stepan Gerasimov, Nov 01 2008

Extensions

One more term from R. J. Mathar, Apr 18 2010

Status

approved