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 A106599 Two block six-symbol substitution : n=1. 0
 1, 5, 6, 3, 1, 2, 5, 5, 6, 4, 3, 3, 1, 2, 2, 5, 5, 5, 6, 4, 4, 3, 3, 3, 1, 2, 2, 2, 5, 5, 5, 5, 6, 4, 4, 4, 3, 3, 3, 3, 1, 2, 2, 2, 2, 5, 5, 5, 5, 5, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 2, 2, 2, 2, 2, 5, 5, 5, 5, 5, 5, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 2, 2, 2, 2, 2, 2, 5, 5, 5, 5, 5, 5, 5, 6, 4, 4, 4, 4, 4, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Removing two links in the digraph makes it a line. Characteristic Polynomial:x^6-3*x^4+3*x^2-1 Triangular form: ( half even/ half odd) {1}, {5, 6}, {3, 1, 2} {5, 5, 6, 4} {3, 3, 1, 2, 2} {5, 5, 5, 6, 4, 4} {3, 3, 3, 1, 2, 2, 2} {5, 5, 5, 5, 6, 4, 4, 4} REFERENCES Curtis McMullen, Prym varieties and Teichmuller curves. LINKS Table of n, a(n) for n=0..104. FORMULA 1->{5, 6}, 2->{}4}*n, 3->{5}, 4->{2}, 5->{3}*n, 6->{1, 2} MATHEMATICA n0=6; n=1; s[1] = {5, 6}; s[2] = Table[If[i <= n, 4, {}], {i, 1, n0}]; s[3] = Table[If[i <= n, 5, {}], {i, 1, n0}]; s[4] = Table[If[i <= n, 2, {}], {i, 1, n0}];; s[5] = Table[If[i <= n, 3, {}], {i, 1, n0}]; s[6] = {1, 2}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = Table[p[i], {i, 0, 20}]; MatrixForm[aa] aaa = Flatten[aa] CROSSREFS Sequence in context: A226533 A011499 A242813 * A342015 A222466 A195448 Adjacent sequences: A106596 A106597 A106598 * A106600 A106601 A106602 KEYWORD nonn,uned AUTHOR Roger L. Bagula, May 10 2005 STATUS approved

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Last modified June 23 10:38 EDT 2024. Contains 373643 sequences. (Running on oeis4.)