A285430 Fixed point of the morphism 0->11, 1-> 101.

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

Offset

1

Links

Clark Kimberling, Table of n, a(n) for n = 1..10000

Example

0 -> 11 -> 10101- -> 1011110111101  -> 101111011011011011110110110110111101 ->

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 1}}] &, {0}, 13] (* A285430 *)
Flatten[Position[s, 0]]  (* A026364 *)
Flatten[Position[s, 1]]  (* A026363 *)
Take[SubstitutionSystem[{0->{1, 1}, 1->{1, 0, 1}}, {1}, {5}][[1]], 100] (* Harvey P. Dale, Jan 15 2022 *)

Crossrefs

Cf. A026363, A026364.

Sequence in context: A225145 A121967 A356310 * A284368 A287725 A176702

Adjacent sequences: A285427 A285428 A285429 * A285431 A285432 A285433

Keyword

nonn,easy

Author

Clark Kimberling, Apr 28 2017

Status

approved