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A287343 Positions of 1 in A287341. 4
1, 2, 7, 8, 18, 19, 21, 22, 28, 29, 31, 32, 33, 34, 39, 40, 50, 51, 53, 54, 60, 61, 63, 64, 70, 71, 73, 74, 80, 81, 83, 84, 86, 87, 89, 90, 91, 92, 97, 98, 104, 105, 107, 108, 109, 110, 115, 116, 126, 127, 129, 130, 136, 137, 139, 140, 142, 143, 145, 146 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {2, 0}, 2 -> 0}] &, {0}, 10] (* A287341 *)

Flatten[Position[s, 0]] (* A287342 *)

Flatten[Position[s, 1]] (* A287343 *)

Flatten[Position[s, 2]] (* A287344 *)

CROSSREFS

Cf. A287341, A287342, A287344.

Sequence in context: A331489 A300476 A213037 * A101518 A055247 A015617

Adjacent sequences:  A287340 A287341 A287342 * A287344 A287345 A287346

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 24 2017

STATUS

approved

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Last modified June 27 16:27 EDT 2022. Contains 354896 sequences. (Running on oeis4.)