A105315 From the 4-symbol substitution 1->{2, 3}, 2->{3, 4}, 3->{4}, 4->{1}.

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

Offset

0,3

Links

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

Mathematica

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

Crossrefs

Sequence in context: A059832 A105316 A105933 * A328912 A356327 A130830

Adjacent sequences: A105312 A105313 A105314 * A105316 A105317 A105318

Keyword

nonn

Author

Roger L. Bagula, Apr 25 2005

Status

approved