%I A106653
%S A106653 1,2,3,4,2,3,4,5,3,4,5,1,2,3,4,4,5,1,2,3,4,2,3,4,5,2,3,4,5,3,4,5,1,2,3,
%T A106653 4,4,5,1,2,3,4,2,3,4,5,5,1,2,3,4,2,3,4,5,3,4,5,1,2,3,4,3,4,5,1,2,3,4,4,
%U A106653 5,1,2,3,4,2,3,4,5,5,1,2,3,4,2,3,4,5,3,4,5,1,2,3,4,1,2,3,4,2,3,4,5,3,4
%N A106653 Five-symbol substitution, characteristic polynomial: x^5-x^3-x^2-x-1.
%C A106653 Digraph matrix is: {{0, 1, 0, 0, 0}, {0, 0, 1, 0, 0}, {0, 0, 0, 1, 0}, 
               {0, 0, 0, 0, 1}, { 1, 1, 1, 1, 0}}
%F A106653 1->{2}, 2->{3}, 3->{4}, 4->{5}, 5->{1, 2, 3, 4}
%t A106653 s[1] = {2}; s[2] = {3}; s[3] = {4}; s[4] = {5}; s[5] = {1, 2, 3, 4}; 
               t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n 
               - 1]] aa = p[15]
%Y A106653 Sequence in context: A035578 A107795 A151925 this_sequence A049865 A070771 
               A046068
%Y A106653 Adjacent sequences: A106650 A106651 A106652 this_sequence A106654 A106655 
               A106656
%K A106653 nonn,uned
%O A106653 0,2
%A A106653 Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 12 2005