A165112 Length of preperiodic part of trajectory of n under iteration of the base-9 Kaprekar map in A165110

0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 2, 2, 0, 3, 1, 2, 1, 2, 1, 3, 2, 2, 1, 3, 1, 2, 1, 2, 1, 3, 2, 2, 2, 3, 1, 2, 1, 2, 1, 3, 2, 2, 2, 3, 0, 2, 1, 2, 1, 3, 1, 2, 2, 3, 1, 2, 1, 2, 1, 3, 1, 2, 2, 3, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 1, 2, 1, 2, 2, 4, 3, 1, 1, 2, 3, 4, 2, 1, 2, 4, 3, 1, 1, 2, 3, 4, 2, 2, 4, 3, 1

Offset

0,10

Links

Joseph Myers, Table of n, a(n) for n=0..6561

Index entries for the Kaprekar map

Crossrefs

Cf. A165110, A165113.

In other bases: A164885 (base 2), A164995 (base 3), A165014 (base 4), A165034 (base 5), A165053 (base 6), A165073 (base 7), A165092 (base 8), A151962 (base 10).

Sequence in context: A309853 A107456 A334864 * A330234 A332423 A256106

Adjacent sequences: A165109 A165110 A165111 * A165113 A165114 A165115

Keyword

base,nonn

Author

Joseph Myers, Sep 04 2009

Status

approved