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A101660 Fixed point of morphism 0 -> 01, 1 -> 02, 2 -> 12. +0
1
0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 2, 1, 2, 0, 1, 1, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 1, 2, 0, 2, 1, 2, 0, 1, 0, 2, 0, 1, 1, 2, 0 (list; graph; listen)
OFFSET

0,4

FORMULA

a(2n) = [a(n)==2], a(2n+1) = 1 + [a(n)>0].

MATHEMATICA

Nest[ Function[ l, {Flatten[(l /. {0 -> {0, 1}, 1 -> {0, 2}, 2 -> {1, 2}})]}], {0}, 7] (from Robert G. Wilson v Feb 26 2005)

CROSSREFS

Sequence in context: A134655 A077614 A116948 this_sequence A062984 A105243 A140081

Adjacent sequences: A101657 A101658 A101659 this_sequence A101661 A101662 A101663

KEYWORD

nonn,easy

AUTHOR

Ralf Stephan, Dec 11 2004

page 1

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Last modified March 19 01:26 EDT 2010. Contains 173632 sequences.


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