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Search: id:A108132
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| A108132 |
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Three symbol Pisot substitution with characteristic Polynomial: x^3-2*x^2-2*x-1. |
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+0
1
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| 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3, 2, 3, 3, 1, 2, 2, 3, 3, 1, 2, 2, 3, 3
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Pisot with roots: {{x -> -0.415589 - 0.424848*I}, {x -> -0.415589 + 0.424848*I}, {x -> 2.83118}} This substitution gives two part near tile fractal.
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FORMULA
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1->{2}, 2->{3}, 3->{1, 2, 2, 3, 3}
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MATHEMATICA
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s[1] = {2}; s[2] = {3}; s[3] = {1, 2, 2, 3, 3}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[7]
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CROSSREFS
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Sequence in context: A145854 A097663 A066517 this_sequence A106589 A051911 A106595
Adjacent sequences: A108129 A108130 A108131 this_sequence A108133 A108134 A108135
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KEYWORD
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nonn,uned
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 04 2005
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