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A118511 Define sequence S_n by: initial term = n, reverse digits and add 1 to get next term. It is conjectured that S_n always reaches a cycle of length 9, as in A117230. Sequence gives number of steps for S_n to reach the cycle. +0
3
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 18, 17, 15, 13, 11, 9, 7, 5, 3, 1, 16, 16, 15, 13, 11, 9, 7, 5, 3, 1, 14, 14, 14, 13, 11, 9, 7, 5, 3, 1, 12, 12, 12, 12, 11, 9, 7, 5, 3, 1, 10, 10, 10, 10, 10, 9, 7, 5, 3, 1, 8, 8, 8, 8, 8, 8, 7, 5, 3, 1, 6, 6, 6, 6, 6, 6, 6, 5, 3, 1, 4, 4, 4, 4, 4, 4, 4 (list; graph; listen)
OFFSET

1,11

LINKS

N. J. A. Sloane, Sequences of RADD type

CROSSREFS

For records see A118510. Cf. A117831. S_1 is A117230, S_11 is A118512, S_13 is A118513.

Sequence in context: A070646 A094381 A074972 this_sequence A022974 A023460 A029926

Adjacent sequences: A118508 A118509 A118510 this_sequence A118512 A118513 A118514

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 06 2006

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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