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A105159 Consider trajectory of n under repeated application of map k --> A105108(k); a(n) = length of cycle. 0
1, 1, 1, 3, 3, 3, 3, 3, 3, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 1, 9, 1, 9, 3, 1, 9, 3, 1, 9, 3, 1, 9, 3, 1, 9, 3, 1, 9, 3, 1, 9, 3, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Why is this always a power of 3?

LINKS

Table of n, a(n) for n=0..52.

David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [pdf, ps].

CROSSREFS

Cf. A102370, A105108, A105154.

Sequence in context: A111233 A210746 A283986 * A209291 A176873 A227727

Adjacent sequences:  A105156 A105157 A105158 * A105160 A105161 A105162

KEYWORD

nonn,base

AUTHOR

Philippe Deléham, Apr 30 2005

STATUS

approved

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Last modified July 22 07:23 EDT 2019. Contains 325216 sequences. (Running on oeis4.)