A287110 Positions of 1 in A287108.

1, 5, 8, 10, 11, 15, 17, 18, 21, 22, 24, 28, 31, 33, 34, 37, 38, 40, 44, 46, 47, 49, 53, 54, 58, 61, 63, 64, 68, 70, 71, 74, 75, 77, 81, 83, 84, 86, 90, 91, 95, 98, 100, 101, 104, 105, 107, 111, 112, 116, 119, 121, 122, 124, 128, 131, 133, 134, 138, 140, 141

Offset: 1

Author

Clark Kimberling, May 21 2017

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A287108, A287109, A287111.

Programs

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 10] (* A287108 *)
Flatten[Position[s, 0]] (* A287109 *)
Flatten[Position[s, 1]] (* A287110 *)
Flatten[Position[s, 2]] (* A287111 *)