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A286341 Positions of 1 in A286339; complement of A286340. 3
2, 5, 6, 9, 11, 14, 16, 17, 20, 23, 24, 27, 29, 30, 33, 36, 38, 41, 42, 45, 47, 50, 52, 53, 56, 59, 61, 64, 65, 68, 70, 71, 74, 77, 78, 81, 83, 86, 88, 89, 92, 95, 96, 99, 101, 102, 105, 108, 110, 113, 114, 117, 119, 120, 123, 126, 127, 130, 132, 135, 137 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(n) - a(n-1) is in {1,2,3} for n>=2.  Conjecture: a(n)/n -> 9/4.

LINKS

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

EXAMPLE

As a word, A286339 = 01001100101001011001001100..., in which 1 is in positions 2,5,6,9,11,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 9] (* A010060 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"1101" -> "1"}]

st = ToCharacterCode[w1] - 48  (* A286339 *)

Flatten[Position[st, 0]]  (* A286340 *)

Flatten[Position[st, 1]]  (* A286341 *)

CROSSREFS

Cf. A010060, A286339, A286340.

Sequence in context: A046160 A033161 A024516 * A284657 A230506 A236072

Adjacent sequences:  A286338 A286339 A286340 * A286342 A286343 A286344

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 09 2017

STATUS

approved

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Last modified May 24 23:45 EDT 2020. Contains 334581 sequences. (Running on oeis4.)