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A031211 Periods of sum of 8th powers of digits iterated until the sequence becomes periodic. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..58.

Eric Weisstein's World of Mathematics, Digitaddition.

CROSSREFS

Sequence in context: A305687 A147059 A317067 * A049522 A084073 A049523

Adjacent sequences:  A031208 A031209 A031210 * A031212 A031213 A031214

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein

EXTENSIONS

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

STATUS

approved

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Last modified August 12 20:18 EDT 2022. Contains 356077 sequences. (Running on oeis4.)