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 A108132 Three symbol Pisot substitution with characteristic Polynomial: x^3-2*x^2-2*x-1. 0
 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; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS 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. LINKS FORMULA 1->{2}, 2->{3}, 3->{1, 2, 2, 3, 3} MATHEMATICA 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] CROSSREFS Sequence in context: A247565 A204259 A066517 * A106589 A335490 A334290 Adjacent sequences:  A108129 A108130 A108131 * A108133 A108134 A108135 KEYWORD nonn,uned AUTHOR Roger L. Bagula, Jun 04 2005 STATUS approved

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Last modified September 25 12:57 EDT 2021. Contains 347654 sequences. (Running on oeis4.)