A159917 Fixed point of the morphism 0 -> 01, 1 -> 2, 2 -> 01, starting from a(0) = 0.

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

Offset: 0

Author

Philippe Deléham, Apr 25 2009

Keywords

• nonn

Comments

Equals A003714 mod 4.

Links

• F. Michel Dekking, Morphisms, Symbolic Sequences, and Their Standard Forms, Journal of Integer Sequences, Vol. 19 (2016), Article 16.1.1.

Programs

Mathematica

Nest[Flatten[ # /. {0 -> {0, 1}, 1 -> {2}, 2 -> {0, 1}}] &, {0}, 10] (* Robert G. Wilson v, Apr 27 2009 *)

Extensions

Name changed by Robert G. Wilson v, Apr 27 2009

More terms from Robert G. Wilson v, Apr 27 2009