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A285976 Positions of 0 in A285975; complement of A285977. 3
1, 4, 6, 9, 11, 14, 16, 18, 21, 24, 26, 29, 31, 34, 37, 39, 41, 44, 46, 49, 51, 54, 56, 58, 61, 64, 66, 68, 71, 73, 76, 78, 81, 84, 86, 89, 91, 94, 96, 98, 101, 104, 106, 109, 111, 114, 117, 119, 121, 124, 126, 129, 131, 134, 137, 139, 142, 144, 147, 149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: a(n)/n -> 5/2.

LINKS

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

EXAMPLE

As a word, A285975 = 011010110101101010110110..., in which 0 is in positions 1,4,6,9,11,...

MATHEMATICA

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

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"00" -> "0"}]

st = ToCharacterCode[w1] - 48 (* A285975  *)

Flatten[Position[st, 0]]  (* A285976 *)

Flatten[Position[st, 1]]  (* A285977 *)

CROSSREFS

Cf. A010060, A285975, A285977.

Sequence in context: A285078 A186318 A186345 * A190373 A329784 A010387

Adjacent sequences:  A285973 A285974 A285975 * A285977 A285978 A285979

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 06 2017

STATUS

approved

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Last modified April 10 23:13 EDT 2021. Contains 342877 sequences. (Running on oeis4.)