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A284880 Positions of 0 in A284878; complement of A284879. 3
2, 4, 5, 8, 10, 11, 14, 15, 18, 20, 22, 23, 26, 28, 29, 32, 33, 36, 38, 40, 41, 44, 45, 48, 50, 52, 53, 56, 58, 59, 62, 64, 65, 68, 69, 72, 74, 76, 77, 80, 82, 83, 86, 87, 90, 92, 94, 95, 98, 99, 102, 104, 106, 107, 110, 112, 113, 116, 118, 119, 122, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

2n - a(n ) = A189629(n) for n >= 1.

EXAMPLE

As a word, A284878 = 010110..., in which 1 is in positions 2,4,5,8,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 1, 1, 0}}] &, {0}, 7] (* A284878 *)

Flatten[Position[s, 0]]  (* A284879 *)

Flatten[Position[s, 1]]  (* A284880 *)

CROSSREFS

Cf. A284878, A284879.

Sequence in context: A324700 A191987 A138007 * A047261 A286687 A190807

Adjacent sequences:  A284877 A284878 A284879 * A284881 A284882 A284883

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Apr 15 2017

STATUS

approved

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Last modified October 19 20:58 EDT 2019. Contains 328224 sequences. (Running on oeis4.)