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A284389 Positions of 0 in A284388; complement of A284390. 4
1, 2, 4, 5, 9, 10, 12, 13, 15, 16, 20, 21, 25, 26, 30, 31, 33, 34, 36, 37, 41, 42, 44, 45, 47, 48, 52, 53, 55, 56, 58, 59, 63, 64, 68, 69, 73, 74, 76, 77, 79, 80, 84, 85, 89, 90, 94, 95, 97, 98, 100, 101, 105, 106, 110, 111, 115, 116, 118, 119, 121, 122, 126 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

FORMULA

a(n) = 1 + A284392(n-2) for n >= 3.

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1}, 1 -> {0, 0, 1}}] &, {0}, 8]; (* A284388 *)

Flatten[Position[s, 0]];  (* A284389 *)

Flatten[Position[s, 1]];  (* A284390 *)

CROSSREFS

Cf. A284388, A284390, A284392.

Sequence in context: A189099 A189658 A120797 * A047613 A036795 A307563

Adjacent sequences:  A284386 A284387 A284388 * A284390 A284391 A284392

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Mar 30 2017

STATUS

approved

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Last modified March 28 20:01 EDT 2020. Contains 333103 sequences. (Running on oeis4.)