login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164731 Number of cycles of n-digit numbers (including fixed points) under the Kaprekar map A151949 13
1, 0, 1, 1, 3, 3, 1, 4, 3, 8, 3, 16, 5, 27, 8, 46, 9, 73, 11, 110, 16, 162, 25, 231, 37, 318, 58, 429, 88, 572, 132, 747, 192, 963, 269, 1229, 372, 1551, 500, 1939, 662, 2401, 864, 2948, 1115, 3586, 1421, 4330, 1792, 5194, 2240, 6191, 2764, 7338, 3382, 8650, 4105 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Joseph Myers, Table of n, a(n) for n=1..70

Index entries for the Kaprekar map

CROSSREFS

Cf. A151949, A164716, A164732, A164733, A164734, A164735, A164736.

In other bases: A004526 (base 2, adjusted to start 1, 0, 0, 1, 1, ...), A165006 (base 3), A165025 (base 4), A165045 (base 5), A165064 (base 6), A165084 (base 7), A165103 (base 8), A165123 (base 9). [From Joseph Myers, Sep 05 2009]

Sequence in context: A125607 A137876 A016604 * A137919 A079081 A199775

Adjacent sequences:  A164728 A164729 A164730 * A164732 A164733 A164734

KEYWORD

base,nonn

AUTHOR

Joseph Myers, Aug 23 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 18 07:10 EDT 2013. Contains 225419 sequences.