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 A106589 Three-symbol substitution based on Rauzy: adding one 3 to second substitution: characteristic polynomial: x^3-x^2-2*x-2. 0
 2, 3, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 1, 2, 3, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 1, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Curtis McMullen, Prym varieties and Teichmüller curves, Duke Math. J., Volume 133, Number 3 (2006), 405-616 FORMULA 1->{2}, 2->{3, 3} 3->{1, 2, 3}. MATHEMATICA s[1] = {2}; s[2] = {3, 3}; s[3] = {1, 2, 3}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[7] PROG (PARI) {a(n)=local(A); if(n<1, 0, A=[2]; while(length(A)

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Last modified October 18 00:09 EDT 2019. Contains 328135 sequences. (Running on oeis4.)