A169641 Start with n, apply the map k -> A169639(k) until trajectory converges; sequence give full list of the 20 possible limit points.

177, 246, 245, 236, 230, 178, 244, 275, 295, 342, 274, 326, 247, 253, 281, 285, 293, 333, 286, 302

Offset

1,1

Comments

There is a slight ambiguity in the definition, but I believe these are all the numbers which eventually return to themselves under iteration of k -> A169639(k). - N. J. A. Sloane, Jun 11 2021

Links

Table of n, a(n) for n=1..20.

Crossrefs

Sequence in context: A268790 A077786 A188537 * A255786 A147028 A105988

Adjacent sequences: A169638 A169639 A169640 * A169642 A169643 A169644

Keyword

nonn,word

Author

Jacques ALARDET, Apr 04 2010

Extensions

Edited by N. J. A. Sloane, Apr 05 2010

Status

approved