

A274549


Numbers found in the cycles of the iterated sum of deficient divisors function.


5



1, 6, 15, 18, 19, 20, 22, 24, 28, 34, 36, 42, 48, 52, 54, 76, 78, 84, 90, 98, 140, 171, 260, 308, 336, 496, 8128, 33550336, 8589869056
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OFFSET

1,2


COMMENTS

The 1cycles (or fixed points) greater than 1 are given in A125310, the 3cycle terms are given in A274339, the 4cycle terms are given in A274340 and A274380, and the 10cycle terms are given in A274338. This sequence was suggested to me by Michel Marcus when I was submitting the 3cycle, 4cycle, and 10cycle sequences.


LINKS

Table of n, a(n) for n=1..29.


CROSSREFS

Cf. A125310, A187793, A274338, A274339, A274340, A274380.
Sequence in context: A139204 A122661 A133481 * A099535 A302296 A070999
Adjacent sequences: A274546 A274547 A274548 * A274550 A274551 A274552


KEYWORD

nonn,more


AUTHOR

Timothy L. Tiffin, Jun 27 2016


STATUS

approved



