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A287268 Positions of 0 in A287267. 4
3, 6, 7, 9, 13, 16, 17, 19, 21, 23, 27, 29, 35, 38, 39, 41, 45, 48, 49, 51, 53, 55, 59, 61, 65, 67, 71, 73, 79, 82, 83, 85, 89, 91, 97, 100, 103, 106, 107, 109, 113, 116, 117, 119, 121, 123, 127, 129, 135, 138, 139, 141, 145, 148, 149, 151, 153, 155, 159 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 2}, 2 -> 0}] &, {0}, 11] (* A287267 *)

Flatten[Position[s, 0]] (* A287268 *)

Flatten[Position[s, 1]] (* A287269 *)

Flatten[Position[s, 2]] (* A287270 *)

CROSSREFS

Cf. A287267, A287269, A287270.

Sequence in context: A280210 A023982 A189092 * A191187 A310134 A039591

Adjacent sequences:  A287265 A287266 A287267 * A287269 A287270 A287271

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 24 2017

STATUS

approved

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Last modified July 14 10:28 EDT 2020. Contains 335721 sequences. (Running on oeis4.)