A285668 Fixed point of the morphism 0->11, 1->1101.

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

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 -> 1101 -> 11011101 -> 1101110111110111011101111101... ->

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 1, 0, 1}}] &, {0}, 9]  (* A285668 *)
Flatten[Position[s, 0]]  (* A285669 *)
Flatten[Position[s, 1]]  (* A285670 *)

Crossrefs

Cf. A285669, A285670.

Sequence in context: A285599 A284386 A286922 * A267813 A323000 A005713

Adjacent sequences: A285665 A285666 A285667 * A285669 A285670 A285671

Keyword

nonn,easy

Author

Clark Kimberling, May 02 2017

Status

approved