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

Author

Henry Bottomley, Mar 15 2000

Keywords

• base
• full
• nonn
• fini

Comments

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

Examples

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

Crossrefs

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

Programs

PARI

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

Formula

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