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A287675 Positions of 0 in A287674; complement of A287676. 4
2, 3, 7, 8, 11, 12, 16, 17, 21, 22, 25, 26, 30, 31, 34, 35, 39, 40, 44, 45, 48, 49, 53, 54, 58, 59, 62, 63, 67, 68, 71, 72, 76, 77, 81, 82, 85, 86, 90, 91, 94, 95, 99, 100, 104, 105, 108, 109, 113, 114, 118, 119, 122, 123, 127, 128, 131, 132, 136, 137, 141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: -1 < n*r - a(n) < 2 for n >= 1, where r = (7 + sqrt(5))/4.

LINKS

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

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0}}] &, {0}, 10] (* A003849 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0" -> "1", "1" -> "001"}]

st = ToCharacterCode[w1] - 48    (* A287674 *)

Flatten[Position[st, 0]]  (* A287675 *)

Flatten[Position[st, 1]]  (* A287676 *)

CROSSREFS

Cf. A287675, A287676.

Sequence in context: A323003 A051468 A002274 * A273944 A214324 A102664

Adjacent sequences:  A287672 A287673 A287674 * A287676 A287677 A287678

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 2017

STATUS

approved

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Last modified October 17 14:47 EDT 2019. Contains 328114 sequences. (Running on oeis4.)