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A287726 Positions of 0 in A287725; complement of A287727. 4
2, 7, 11, 16, 21, 25, 30, 34, 39, 44, 48, 53, 58, 62, 67, 71, 76, 81, 85, 90, 94, 99, 104, 108, 113, 118, 122, 127, 131, 136, 141, 145, 150, 155, 159, 164, 168, 173, 178, 182, 187, 191, 196, 201, 205, 210, 215, 219, 224, 228, 233, 238, 242, 247, 251 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: 2 < n*r - a(n) < 3 for n >= 1, where r = (7 + sqrt(5))/2.

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" -> "011"}]

st = ToCharacterCode[w1] - 48    (* A287725 *)

Flatten[Position[st, 0]]  (* A287726 *)

Flatten[Position[st, 1]]  (* A287727 *)

CROSSREFS

Cf. A287725, A287727.

Sequence in context: A140491 A122823 A063289 * A190518 A190750 A049635

Adjacent sequences:  A287723 A287724 A287725 * A287727 A287728 A287729

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 2017

STATUS

approved

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Last modified December 14 18:21 EST 2018. Contains 318106 sequences. (Running on oeis4.)