A285661 Fixed point of the morphism 0->11, 1->1100.

1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 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 -> 1100 -> 110011001111 -> 1100110011111100110011111100110011001100... ->

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 1, 0, 0}}] &, {0}, 9]  (* A285661 *)
Flatten[Position[s, 0]]  (* A285662 *)
Flatten[Position[s, 1]]  (* A285663 *)

Crossrefs

Cf. A285662, A285663.

Sequence in context: A339052 A284490 A284505 * A265698 A267673 A267845

Adjacent sequences: A285658 A285659 A285660 * A285662 A285663 A285664

Keyword

nonn,easy

Author

Clark Kimberling, May 02 2017

Status

approved