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A287074 Positions of 1 in A287072. 4
2, 4, 7, 9, 12, 14, 16, 18, 21, 23, 25, 28, 30, 32, 34, 37, 39, 41, 44, 46, 49, 51, 53, 56, 58, 60, 62, 65, 67, 69, 72, 74, 77, 79, 81, 83, 86, 88, 90, 93, 95, 98, 100, 102, 105, 107, 109, 111, 114, 116, 118, 121, 123, 126, 128, 130, 132, 135, 137, 139, 142 (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 -> {0, 1}, 1 -> {2, 1}, 2 -> 0}] &, {0}, 10] (* A287072 *)

Flatten[Position[s, 0]] (* A287073 *)

Flatten[Position[s, 1]] (* A287074 *)

Flatten[Position[s, 2]] (* A287075 *)

CROSSREFS

Cf. A287072, A287073, A287075.

Sequence in context: A193600 A190429 A239009 * A304501 A283964 A330085

Adjacent sequences:  A287071 A287072 A287073 * A287075 A287076 A287077

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 21 2017

STATUS

approved

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Last modified January 18 11:57 EST 2022. Contains 350455 sequences. (Running on oeis4.)