A287158 Positions of 1 in A287156.

2, 3, 5, 9, 10, 14, 17, 19, 20, 22, 26, 29, 31, 32, 36, 38, 39, 42, 43, 45, 49, 50, 54, 57, 59, 60, 64, 66, 67, 70, 71, 73, 77, 80, 82, 83, 86, 87, 89, 93, 95, 96, 98, 102, 103, 107, 110, 112, 113, 115, 119, 122, 124, 125, 129, 131, 132, 135, 136, 138, 142

Offset: 1

Author

Clark Kimberling, May 22 2017

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A287108, A287156, A287157, A287159.

Programs

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 11] (* A287156 *)
Flatten[Position[s, 0]] (* A287157 *)
Flatten[Position[s, 1]] (* A287158 *)
Flatten[Position[s, 2]] (* A287159 *)