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A106437 Fixed point of the morphism 1->4, 2->1222, 3->2, 4->3444, applied 4*k times to 4. 0

%I #12 Nov 07 2016 08:32:12

%S 4,1,2,2,2,1,2,2,2,1,2,2,2,1,2,2,2,2,3,4,4,4,3,4,4,4,3,4,4,4,2,3,4,4,

%T 4,3,4,4,4,3,4,4,4,2,3,4,4,4,3,4,4,4,3,4,4,4,1,2,2,2,2,3,4,4,4,3,4,4,

%U 4,3,4,4,4,2,3,4,4,4,3,4,4,4,3,4,4,4,2,3,4,4,4,3,4,4,4,3,4,4,4,1,2,2,2,2,3

%N Fixed point of the morphism 1->4, 2->1222, 3->2, 4->3444, applied 4*k times to 4.

%F 1->{4}, 2->{1, 2, 2, 2}, 3->{2}, 4->{3, 4, 4, 4}.

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

%Y Cf. A001906, A006190.

%K nonn,easy,less

%O 0,1

%A _Roger L. Bagula_, May 29 2005

%E New name from _Joerg Arndt_, Nov 07 2016

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Last modified April 24 14:54 EDT 2024. Contains 371960 sequences. (Running on oeis4.)