A285671 Fixed point of the morphism 0->11, 1->1110.

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

Offset

1

Links

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

Index entries for sequences that are fixed points of mappings

Example

0 -> 11 -> 11101110 -> 1110111011101111101110111011 -> ...

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 1, 1, 0}}] &, {0}, 9]  (* A285671 *)
Flatten[Position[s, 0]]  (* A045672, conjectured *)
Flatten[Position[s, 1]]  (* A045671, conjectured *)

Crossrefs

Cf. A045671, A045672.

Sequence in context: A112299 A358839 A230901 * A267773 A325321 A255887

Adjacent sequences: A285668 A285669 A285670 * A285672 A285673 A285674

Keyword

nonn,easy

Author

Clark Kimberling, May 02 2017

Extensions

Edited by Clark Kimberling, Feb 27 2018, Nov 05 2018

Status

approved