A169641 - OEIS

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

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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