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A189706
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Fixed point of the morphism 0->011, 1->001.
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5
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0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1
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OFFSET
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1
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LINKS
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Table of n, a(n) for n=1..122.
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FORMULA
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a(3k-2)=0, a(3k-1)=1-a(k), a(3k)=1 for k>=1, a(0)=0.
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EXAMPLE
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0->011->011001001->
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MATHEMATICA
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t = Nest[Flatten[# /. {0->{0, 1, 1}, 1->{0, 0, 1}}] &, {0}, 5] (*A189706*)
f[n_] := t[[n]]
Flatten[Position[t, 0]] (*A189707*)
Flatten[Position[t, 1]] (*A189708*)
s[n_] := Sum[f[i], {i, 1, n}]; s[0] = 0;
Table[s[n], {n, 1, 120}] (*A189709*)
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CROSSREFS
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Cf. A189628, A189706, A189707, A189708.
Sequence in context: A182582 A200244 A189476 * A188321 A191162 A188076
Adjacent sequences: A189703 A189704 A189705 * A189707 A189708 A189709
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling, Apr 25 2011
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STATUS
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approved
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