A189476 Fixed point of the morphism 0->01, 1->100.

0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1

Offset

1

Links

Table of n, a(n) for n=1..128.

Index entries for sequences that are fixed points of mappings

Example

0->01->01100->011001000101->

Mathematica

t = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0, 0}}] &, {0}, 6] (*A189476*)
Flatten[Position[t, 0]] (*A189477*)
Flatten[Position[t, 1]] (*A189478*)
SubstitutionSystem[{0->{0, 1}, 1->{1, 0, 0}}, {0}, {7}][[1]] (* Harvey P. Dale, Mar 05 2022 *)

Crossrefs

Cf. A189477, A189478.

Sequence in context: A076182 A010058 A140591 * A288752 A189706 A188321

Adjacent sequences: A189473 A189474 A189475 * A189477 A189478 A189479

Keyword

nonn

Author

Clark Kimberling, Apr 22 2011

Status

approved