A031211 Periods of sum of 8th powers of digits iterated until the sequence becomes periodic.

1, 1, 25, 154, 154, 154, 154, 25, 154, 154, 1, 25, 154, 154, 1, 25, 25, 1, 154, 154, 25, 154, 154, 25, 154, 154, 154, 25, 154, 1, 154, 154, 25, 154, 25, 25, 25, 1, 154, 154, 154, 1, 154, 25, 154, 25, 25, 154, 154, 154, 154, 25, 154, 25, 25, 25, 154, 25, 154

Offset: 0

Author

Eric W. Weisstein

Keywords

• nonn
• base

Links

• Eric Weisstein's World of Mathematics, Digitaddition.

Extensions

Missing a(0)=1 inserted by Sean A. Irvine, Apr 15 2020