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A285973 Positions of 0 in A285972; complement of A285974. 3
1, 5, 8, 13, 17, 21, 24, 28, 32, 37, 40, 45, 49, 53, 58, 61, 65, 69, 72, 77, 81, 85, 88, 92, 96, 101, 104, 108, 112, 115, 120, 124, 128, 133, 136, 141, 145, 149, 152, 156, 160, 165, 168, 173, 177, 181, 186, 189, 193, 197, 200, 205, 209, 213, 218, 221, 226 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

LINKS

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

EXAMPLE

As a word, A285972 = 011101101111011101..., in which 0 is in positions 1,5,8,13,17,...

MATHEMATICA

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

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"10" -> "1"}]

st = ToCharacterCode[w1] - 48 (* A285972  *)

Flatten[Position[st, 0]]  (* A285973 *)

Flatten[Position[st, 1]]  (* A285974 *)

CROSSREFS

Cf. A010060, A285972, A285974.

Sequence in context: A058240 A097268 A226696 * A219639 A314426 A314427

Adjacent sequences:  A285970 A285971 A285972 * A285974 A285975 A285976

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 06 2017

STATUS

approved

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Last modified October 18 01:01 EDT 2018. Contains 316297 sequences. (Running on oeis4.)