A052455 Fixed points for operation of repeatedly replacing a number with the sum of the fourth power of its digits.

0, 1, 1634, 8208, 9474

Offset

1,3

Comments

This is row n=4 in A252648. - M. F. Hasler, Apr 12 2015

Links

Table of n, a(n) for n=1..5.

Formula

a(n) = A055013(a(n)). - M. F. Hasler, Apr 12 2015

Example

a(2)=1634 since 1^4+6^4+3^4+4^4=1+1296+81+256=1634

Prog

(PARI) for(n=0, 10^5, A055013(n)==n&&print1(n", ")) \\ M. F. Hasler, Apr 12 2015

Crossrefs

Cf. A023052, A046074, A046197, A052464, A124068, A124069, A226970, A003321.

Sequence in context: A297659 A219007 A072409 * A252619 A224461 A233121

Adjacent sequences: A052452 A052453 A052454 * A052456 A052457 A052458

Keyword

base,full,nonn,fini

Author

Henry Bottomley, Mar 15 2000

Status

approved