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A031200
Periods of sum of 7th powers of digits iterated until the sequence becomes periodic.
1
1, 1, 92, 14, 30, 92, 56, 6, 92, 56, 1, 92, 27, 30, 92, 56, 30, 12, 27, 21, 92, 27, 2, 92, 27, 30, 12, 56, 30, 92, 14, 30, 92, 56, 21, 92, 56, 30, 92, 27, 30, 92, 27, 21, 92, 27, 30, 12, 56, 30, 92, 56, 30, 92, 27, 30, 92, 56, 30, 12, 56, 30, 12, 56, 30, 92, 56, 30
OFFSET
0,3
LINKS
Eric Weisstein's World of Mathematics, Digitaddition
CROSSREFS
Sequence in context: A352755 A116677 A323060 * A075479 A081222 A033412
KEYWORD
nonn,base
EXTENSIONS
Missing a(0)=1 inserted by Sean A. Irvine, Apr 14 2020
STATUS
approved