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A287727 Positions of 1 in A287725; complement of A287726. 4
1, 3, 4, 5, 6, 8, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 26, 27, 28, 29, 31, 32, 33, 35, 36, 37, 38, 40, 41, 42, 43, 45, 46, 47, 49, 50, 51, 52, 54, 55, 56, 57, 59, 60, 61, 63, 64, 65, 66, 68, 69, 70, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 84 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: -1 < n*r - a(n) < 1 for n >= 1, where r = (15 - sqrt(5))/10.

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, A287726.

Sequence in context: A187970 A122488 A241403 * A298606 A039095 A001957

Adjacent sequences:  A287724 A287725 A287726 * A287728 A287729 A287730

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 02 2017

STATUS

approved

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Last modified October 21 04:24 EDT 2019. Contains 328291 sequences. (Running on oeis4.)