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A165014 Length of preperiodic part of trajectory of n under iteration of the base-4 Kaprekar map in A165012. 10
0, 1, 1, 1, 2, 1, 2, 3, 3, 2, 1, 2, 3, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 1, 0, 1, 1, 1, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 2, 2, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Joseph Myers, Table of n, a(n) for n = 0..1024

Index entries for the Kaprekar map

CROSSREFS

Cf. A165012, A165015.

In other bases: A164885 (base 2), A164995 (base 3), A165034 (base 5), A165053 (base 6), A165073 (base 7), A165092 (base 8), A165112 (base 9), A151962 (base 10).

Sequence in context: A238385 A215652 A305715 * A058063 A232094 A143902

Adjacent sequences:  A165011 A165012 A165013 * A165015 A165016 A165017

KEYWORD

base,nonn

AUTHOR

Joseph Myers, Sep 04 2009

STATUS

approved

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Last modified December 15 11:43 EST 2019. Contains 329999 sequences. (Running on oeis4.)