A131571 Fixed points of the map m -> powerback(m) (see A133048 for definition).

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 25, 107495424

Offset

1,3

Comments

Probably there are no other terms. There are no other terms below 10^100.

Links

Table of n, a(n) for n=1..12.

Example

Under the powerback map of A133048, 25 -> 5^2 = 25, 107495424 -> 4^2*4^5*9^4*7^0*1 = 107495424.

Crossrefs

Cf. A133048, A135385.

Sequence in context: A132416 A128606 A085123 * A179988 A364187 A179979

Adjacent sequences: A131568 A131569 A131570 * A131572 A131573 A131574

Keyword

nonn,base

Author

J. H. Conway and N. J. A. Sloane, Dec 31 2007

Status

approved