A284680 Fixed point of the morphism 0->1, 1->1000.

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

1->1000->1000111-> 1000111100010001000  ->

Mathematica

s = Nest[Flatten[# /. {0 -> {1}, 1 -> {1, 0, 0, 0}}] &, {0}, 8] (* A284680 *)
Flatten[Position[s, 0]]  (* A284681 *)
Flatten[Position[s, 1]]  (* A284682 *)

Crossrefs

Cf. A283981, A283982.

Sequence in context: A120532 A320106 A303561 * A004555 A200261 A288855

Adjacent sequences: A284677 A284678 A284679 * A284681 A284682 A284683

Keyword

nonn,easy

Author

Clark Kimberling, Apr 11 2017

Status

approved