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A286340 Positions of 0 in A286339; complement of A286341. 3
1, 3, 4, 7, 8, 10, 12, 13, 15, 18, 19, 21, 22, 25, 26, 28, 31, 32, 34, 35, 37, 39, 40, 43, 44, 46, 48, 49, 51, 54, 55, 57, 58, 60, 62, 63, 66, 67, 69, 72, 73, 75, 76, 79, 80, 82, 84, 85, 87, 90, 91, 93, 94, 97, 98, 100, 103, 104, 106, 107, 109, 111, 112, 115 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) - a(n-1) is in {1,2,3} for n>=2.  Conjecture: a(n)/n -> 9/5.

LINKS

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

EXAMPLE

As a word, A286339 = 01001100101001011001001100..., in which 0 is in positions 1,3,4,7,8,10,...

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, A286341.

Sequence in context: A091934 A178482 A284658 * A024515 A187835 A184820

Adjacent sequences:  A286337 A286338 A286339 * A286341 A286342 A286343

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 09 2017

STATUS

approved

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Last modified June 4 01:05 EDT 2020. Contains 334808 sequences. (Running on oeis4.)