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A101660
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Fixed point of morphism 0 -> 01, 1 -> 02, 2 -> 12.
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0
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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; refs; listen; history; internal format)
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OFFSET
| 0,4
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FORMULA
| a(2n) = [a(n)==2], a(2n+1) = 1 + [a(n)>0].
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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)
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CROSSREFS
| Sequence in context: A077614 A180793 A116948 * A062984 A105243 A140081
Adjacent sequences: A101657 A101658 A101659 * A101661 A101662 A101663
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KEYWORD
| nonn,easy
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AUTHOR
| Ralf Stephan, Dec 11 2004
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