A191263 Positions of 1 in A191261.

2, 7, 9, 11, 13, 18, 23, 28, 33, 35, 37, 39, 44, 46, 48, 50, 55, 57, 59, 61, 66, 68, 70, 72, 77, 82, 87, 92, 94, 96, 98, 103, 108, 113, 118, 120, 122, 124, 129, 134, 139, 144, 146, 148, 150, 155, 160, 165, 170, 172, 174, 176, 181, 183, 185, 187, 192, 194, 196, 198, 203, 205, 207, 209, 214, 219, 224, 229, 231, 233, 235, 240, 242, 244

Offset: 1

Author

Clark Kimberling, May 28 2011

Keywords

• nonn
• easy

Comments

Also, positions of 1 in the fixed point of the morphism 0->01, 1>000; see A284745. - Clark Kimberling, Apr 13 2017

Links

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

Crossrefs

Cf. A191261, A191250, A284745, A284746.

Programs

Mathematica

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 0, 0}}] &, {0}, 13]; (* A284745 *)
Flatten[Position[s, 0]];  (* A284746 *)
Flatten[Position[s, 1]];  (* A191263 *)