A106655 4-limiting word of the morphism 1->2, 2->3, 3->4, 4->14 Four-symbol substitution, characteristic polynomial: x^4-x^3-1.

4, 3, 2, 1, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 4, 3, 2, 1, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 1, 4, 4, 3, 2, 1, 4, 4, 3, 2, 1, 4

Offset

0,1

Links

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

Mathematica

s[1] = {2}; s[2] = {3}; s[3] = {4}; s[4] = {1, 2, 3}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]] aa = p[19]

Crossrefs

Sequence in context: A196535 A388476 A388492 * A105313 A085064 A030587

Adjacent sequences: A106652 A106653 A106654 * A106656 A106657 A106658

Keyword

nonn

Author

Roger L. Bagula, May 12 2005

Extensions

Edited by Sean A. Irvine, May 24 2026

Status

approved