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A106591
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Six-symbol substitution based on doubling the Rauzy substitution : n=3 characteristic polynomial: x^6-19*x^4+99*x^2-81.
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0
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1, 4, 5, 6, 2, 2, 2, 3, 3, 3, 1, 2, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 5, 6, 4, 4, 4, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 3, 3, 3, 1, 2, 3, 2, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Triangular form: {1}, {4, 5, 6}, {2, 2, 2, 3, 3, 3, 1, 2, 3} {4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 5, 6, 4, 4, 4, 5, 5,5}
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REFERENCES
| Curtis McMullen, Prym varieties and Teichmuller curves.
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FORMULA
| 1->{4.5.6}, 2->{4}*n, 3->{5}, 4->{2}, 5->{3}.n 6->{1, 2, 3}
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MATHEMATICA
| n0=6 n=3 s[1] = {4, 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, 3}; 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, 4}]; MatrixForm[aa] aaa = Flatten[aa]
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CROSSREFS
| Sequence in context: A075566 A076087 A082486 * A106592 A106593 A010665
Adjacent sequences: A106588 A106589 A106590 * A106592 A106593 A106594
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KEYWORD
| nonn,uned
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 10 2005
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