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A285961 Positions of 0 in A285960; complement of A285962. 3
4, 7, 12, 16, 20, 23, 27, 31, 36, 39, 44, 48, 52, 57, 60, 64, 68, 71, 76, 80, 84, 87, 91, 95, 100, 103, 107, 111, 114, 119, 123, 127, 132, 135, 140, 144, 148, 151, 155, 159, 164, 167, 172, 176, 180, 185, 188, 192, 196, 199, 204, 208, 212, 217, 220, 225, 229 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture: a(n)/n -> 4.

LINKS

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

EXAMPLE

As a word, A285960 = 111011011110111011..., in which 0 is in positions 4,7,12,16,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 8] (* Thue-Morse, A010060 *)

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"01" -> "1"}]

st = ToCharacterCode[w1] - 48 (* A285960  *)

Flatten[Position[st, 0]]  (* A285961 *)

Flatten[Position[st, 1]]  (* A285962 *)

CROSSREFS

Cf. A010060, A285960, A285962.

Sequence in context: A310779 A083030 A310780 * A310781 A310782 A232424

Adjacent sequences:  A285958 A285959 A285960 * A285962 A285963 A285964

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 05 2017

STATUS

approved

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Last modified August 8 05:25 EDT 2020. Contains 336290 sequences. (Running on oeis4.)