A287161 Positions of 0 in A287160.

1, 7, 11, 13, 14, 20, 22, 23, 27, 28, 31, 37, 41, 43, 44, 48, 49, 52, 58, 60, 61, 64, 70, 71, 77, 81, 83, 84, 90, 92, 93, 97, 98, 101, 107, 109, 110, 113, 119, 120, 126, 130, 132, 133, 137, 138, 141, 147, 148, 154, 158, 160, 161, 164, 170, 174, 176, 177, 183

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. A287160, A287162, A287163.

Programs

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 9] (* A287160 *)
Flatten[Position[s, 0]] (* A287161 *)
Flatten[Position[s, 1]] (* A287162 *)
Flatten[Position[s, 2]] (* A287163 *)