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A287241 Positions of 0 in A287240. 4
2, 3, 6, 7, 10, 12, 15, 16, 19, 20, 23, 25, 28, 29, 32, 34, 36, 39, 41, 44, 45, 48, 49, 52, 54, 57, 58, 61, 62, 65, 67, 70, 71, 74, 76, 78, 81, 83, 86, 87, 90, 91, 94, 96, 99, 100, 103, 105, 107, 110, 112, 114, 117, 119, 122, 123, 126, 128, 130, 133, 135 (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, 0}, 2 -> 1}] &, {1}, 11] (* A287240 *)

Flatten[Position[s, 0]] (* A287241 *)

Flatten[Position[s, 1]] (* A287242 *)

Flatten[Position[s, 2]] (* A287243 *)

CROSSREFS

Cf. A287241, A287242, A287243.

Sequence in context: A285259 A284907 A330572 * A331075 A062720 A069813

Adjacent sequences:  A287238 A287239 A287240 * A287242 A287243 A287244

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 24 2017

STATUS

approved

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Last modified January 27 09:09 EST 2020. Contains 331293 sequences. (Running on oeis4.)