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A107292 3-symbol substitution with characteristic real root polynomial:m x^3-2*x^2-2*x+2. 0
1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 3, 1, 3, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 3, 1, 3, 3, 1, 3, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 3, 1, 3, 1, 3, 3, 1, 2, 2, 1, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

This is a real root cubic:{{x -> -1.17009}, {x -> 0.688892}, {x -> 2.48119}} like the Bombieri aperiodic: a Bombieri silver Isomer substitution: ( same characteristic polynomial) 1->{3},2->{2,1,2},3->{1,2,2,1}

LINKS

Table of n, a(n) for n=0..104.

FORMULA

1->{1, 3, 3, 1}, 2->{3, 1, 3}, 3->{2}

MATHEMATICA

s[1] = {1, 3, 3, 1}; s[2] = {3, 1, 3}; s[3] = {2}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[5]

CROSSREFS

Cf. A106748, A106749.

Sequence in context: A003637 A317413 A110628 * A225331 A004550 A096836

Adjacent sequences:  A107289 A107290 A107291 * A107293 A107294 A107295

KEYWORD

nonn,uned

AUTHOR

Roger L. Bagula, May 20 2005

STATUS

approved

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Last modified June 24 04:50 EDT 2021. Contains 345416 sequences. (Running on oeis4.)