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A285208
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1-limiting word of the morphism 0->10, 1-> 0100.
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6
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1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1
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OFFSET
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1
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COMMENTS
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The morphism 0->10, 1-> 0100 has two limiting words. If the number of iterations is even, the 0-word evolves from 0 -> 10 -> 0100 -> 1001001010 -> 0100101001001010010010010010; if the number of iterations is odd, the 1-word evolves from 0 -> 10 -> 0100 -> 1001001010, as in A285208.
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LINKS
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MATHEMATICA
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s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 0, 0}}] &, {0}, 11]; (* A285208 *)
Flatten[Position[s, 0]]; (* A285209 *)
Flatten[Position[s, 1]]; (* A285210 *)
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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