

A106686


Triple loop substitution of eight symbols: characteristic polynomial: x^2*(x^3x1)*(x1)*(x^2+x+1).


0



1, 3, 3, 2, 4, 3, 2, 4, 2, 4, 1, 6, 3, 2, 4, 2, 4, 1, 6, 2, 4, 1, 6, 1, 6, 3, 7, 8, 3, 2, 4, 2, 4, 1, 6, 2, 4, 1, 6, 1, 6, 3, 7, 8, 2, 4, 1, 6, 1, 6, 3, 7, 8, 1, 6, 3, 7, 8, 3, 7, 8, 2, 4, 8, 6, 3, 2, 4, 2, 4, 1, 6, 2, 4, 1, 6, 1, 6, 3, 7, 8, 2, 4, 1, 6, 1, 6, 3, 7, 8, 1, 6, 3, 7, 8, 3, 7, 8, 2, 4, 8, 6, 2, 4, 1
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OFFSET

0,2


LINKS



FORMULA

1>{3}, 2>{1}, 3>{2, 4}, 4>{6}, 5>{3}, 6>{7, 8}, 7>{8} 8>{6}


MATHEMATICA

s[1] = {3}; s[2] = {1}; s[3] = {2, 4}; s[4] = {6}; s[5] = {3}; s[6] = {7, 8}; s[7] = {8}; s[8] = {6}; t[a_] := Join[a, Flatten[s /@ a]]; p[0] = {1}; p[1] = t[{1}]; p[n_] := t[p[n  1]] aa = p[6]


CROSSREFS



KEYWORD

nonn,uned


AUTHOR



STATUS

approved



