%I A107468
%S A107468 1,2,3,4,2,4,1,2,3,4,3,4,1,2,3,4,4,3,4,2,4,1,2,3,4,2,4,1,2,3,4,4,3,4,2,
%T A107468 4,1,2,3,4,1,2,3,4,2,4,1,2,3,4,3,4,1,2,3,4,4,3,4,2,4,1,2,3,4,3,4,1,2,3,
%U A107468 4,4,3,4,2,4,1,2,3,4,1,2,3,4,2,4,1,2,3,4,3,4,1,2,3,4,4,3,4,2,4,1,2,3,4
%N A107468 4-symbol substitution made from Fibonacci matrix by one level matrix 
               self-similarity.
%C A107468 Matrix: M={{0, 0, 0, 1}, {0, 0, 1, 1}, {0, 1, 0, 1}, {1, 1, 1, 1}} Characteristic 
               Polynomial: x^4-x^3-4*x^2-x-1
%F A107468 1->{4}, 2->{3, 4}, 4->{2, 4}, {4-{1, 2, 3, 4}
%t A107468 s[1] = {4}; s[2] = {3, 4}; s[3] = {2, 4}; s[4] = {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[6]
%Y A107468 Sequence in context: A070771 A046068 A166281 this_sequence A023632 A107572 
               A043264
%Y A107468 Adjacent sequences: A107465 A107466 A107467 this_sequence A107469 A107470 
               A107471
%K A107468 nonn,uned
%O A107468 0,2
%A A107468 Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 27 2005