A165007 Number of n-digit numbers in a cycle (including fixed points) under the base-3 Kaprekar map A164993

1, 0, 0, 2, 1, 3, 3, 1, 6, 5, 10, 3, 15, 4, 21, 7, 28, 12, 36, 11, 45, 13, 55, 18, 66, 19, 78, 25, 91, 28, 105, 35, 120, 41, 136, 43, 153, 47, 171, 56, 190, 58, 210, 68, 231, 73, 253, 84, 276, 85, 300, 97, 325, 103, 351, 116, 378, 119, 406, 133, 435, 140, 465, 155, 496, 162

Offset

1,4

Links

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

Index entries for the Kaprekar map

Crossrefs

Cf. A164993, A164998, A165006, A008615.

In other bases: A004526 (base 2, adjusted to start 1, 0, 0, 1, 1, ...), A165026 (base 4), A165046 (base 5), A165065 (base 6), A165085 (base 7), A165104 (base 8), A165124 (base 9), A164732 (base 10).

Sequence in context: A322265 A066704 A262917 * A284979 A127123 A271238

Adjacent sequences: A165004 A165005 A165006 * A165008 A165009 A165010

Keyword

base,nonn

Author

Joseph Myers, Sep 04 2009

Status

approved