A165026 Number of n-digit numbers in a cycle (including fixed points) under the base-4 Kaprekar map A165012

1, 0, 1, 3, 2, 3, 1, 6, 3, 5, 6, 8, 5, 12, 8, 12, 12, 16, 12, 21, 16, 22, 21, 27, 22, 33, 27, 35, 33, 41, 35, 48, 41, 51, 48, 58, 51, 66, 58, 70, 66, 78, 70, 87, 78, 92, 87, 101, 92, 111, 101, 117, 111, 127, 117, 138, 127, 145, 138, 156, 145, 168, 156, 176, 168, 188, 176

Offset

1,4

Links

Joseph Myers, Table of n, a(n) for n=1..200

Index entries for the Kaprekar map

Crossrefs

Cf. A165012, A165017, A165025, A165027.

In other bases: A004526 (base 2, adjusted to start 1, 0, 0, 1, 1, ...), A165007 (base 3), A165046 (base 5), A165065 (base 6), A165085 (base 7), A165104 (base 8), A165124 (base 9), A164732 (base 10).

Sequence in context: A033093 A070032 A204915 * A289773 A197475 A195381

Adjacent sequences: A165023 A165024 A165025 * A165027 A165028 A165029

Keyword

base,nonn

Author

Joseph Myers, Sep 04 2009

Status

approved