

A121507


Conjectured list of numbers whose aliquot sequence eventually reaches a cycle of length two or more.


8



220, 284, 562, 1064, 1184, 1188, 1210, 1308, 1336, 1380, 1420, 1490, 1604, 1690, 1692, 1772, 1816, 1898, 2008, 2122, 2152, 2172, 2362, 2542, 2620, 2630, 2652, 2676, 2678, 2856, 2924, 2930, 2950, 2974, 3124, 3162, 3202, 3278, 3286, 3332, 3350, 3360
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OFFSET

1,1


COMMENTS

For some numbers the outcome of the aliquot sequence is unknown. Currently, 276 is the least such.


LINKS

Table of n, a(n) for n=1..42.


CROSSREFS

Cf. A008892, A063769, A063990, A072890, A072891, A098007, A121508.
Sequence in context: A217160 A203777 A274116 * A255215 A063990 A259180
Adjacent sequences: A121504 A121505 A121506 * A121508 A121509 A121510


KEYWORD

nonn


AUTHOR

Joshua Zucker, Aug 04 2006


EXTENSIONS

Edited by Don Reble, Aug 15 2006


STATUS

approved



