A287087 Positions of 0 in A287086.

1, 5, 6, 7, 9, 11, 15, 19, 23, 24, 25, 29, 30, 31, 35, 36, 37, 39, 41, 45, 46, 47, 49, 51, 55, 56, 57, 59, 61, 65, 69, 73, 74, 75, 77, 79, 83, 87, 91, 92, 93, 95, 97, 101, 105, 109, 110, 111, 115, 116, 117, 121, 122, 123, 125, 127, 131, 135, 139, 140, 141

Offset

1,2

Links

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

Mathematica

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {2, 2}, 2 -> 0}] &, {0}, 10] (* A287086 *)
Flatten[Position[s, 0]] (* A287087 *)
Flatten[Position[s, 1]] (* A287088 *)
Flatten[Position[s, 2]] (* A287089 *)

Crossrefs

Cf. A287086, A287088, A287089.

Sequence in context: A030388 A031059 A067528 * A180939 A229231 A073419

Adjacent sequences: A287084 A287085 A287086 * A287088 A287089 A287090

Keyword

nonn,easy

Author

Clark Kimberling, May 21 2017

Status

approved