A191258 Fixed point of the morphism 0->01, 1->02, 2->03, 3->001.

0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3

Offset

1,4

Comments

See A191250.

Links

Table of n, a(n) for n=1..132.

Mathematica

t = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 2}, 2 -> {0, 3}, 3 -> {0, 0, 1}}] &, {0}, 10]
(* A191258 *)
Flatten[Position[t, 0]] (* A005408, the odds *)
Flatten[Position[t, 1]] (* A191259 *)
Flatten[Position[t, 2]] (* A191260 *)
Flatten[SubstitutionSystem[{0->{0, 1}, 1->{0, 2}, 2->{0, 3}, 3->{0, 0, 1}}, {0}, {10}]] (* Harvey P. Dale, Nov 27 2021 *)

Crossrefs

Cf. A191250, A191259, A191260.

Sequence in context: A162590 A276424 A346070 * A254990 A191255 A007814

Adjacent sequences: A191255 A191256 A191257 * A191259 A191260 A191261

Keyword

nonn,easy

Author

Clark Kimberling, May 28 2011

Status

approved