A287322 Positions of 1 in A287320.

5, 11, 15, 19, 21, 23, 29, 35, 41, 45, 49, 51, 53, 59, 63, 67, 69, 71, 77, 81, 85, 87, 89, 95, 97, 99, 105, 107, 109, 115, 121, 127, 131, 135, 137, 139, 145, 151, 157, 161, 165, 167, 169, 175, 181, 187, 191, 195, 197, 199, 205, 209, 213, 215, 217, 223, 227

Offset

1,1

Links

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

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {2, 2}, 2 -> 0}] &, {0}, 9] (* A287175 *)
Flatten[Position[s, 0]] (* A287321 *)
Flatten[Position[s, 1]] (* A287322 *)
Flatten[Position[s, 2]] (* A287323 *)

Crossrefs

Cf. A287320, A287321, A287323.

Sequence in context: A344214 A314005 A164355 * A217585 A314006 A314007

Adjacent sequences: A287319 A287320 A287321 * A287323 A287324 A287325

Keyword

nonn,easy

Author

Clark Kimberling, May 23 2017

Status

approved