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A285964 Positions of 0 in A285963; complement of A285965. 3
1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 38, 39, 41, 42, 43, 45, 46, 47, 48, 49, 51, 52, 53, 55, 56, 58, 59, 60, 61, 62, 63, 65, 66, 68, 69, 70, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: a(n)/n -> 4/5.

LINKS

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

EXAMPLE

As a word, A285963 = 00010000010001001..., in which 0 is in positions 1,2,3,5,6,...

MATHEMATICA

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

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"11" -> "0"}]

st = ToCharacterCode[w1] - 48 (* A285963 *)

Flatten[Position[st, 0]]  (* A285964 *)

Flatten[Position[st, 1]]  (* A285965 *)

CROSSREFS

Cf. A010060, A285963, A285965.

Sequence in context: A242485 A099354 A039115 * A198045 A068998 A152854

Adjacent sequences:  A285961 A285962 A285963 * A285965 A285966 A285967

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 05 2017

STATUS

approved

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Last modified May 16 09:28 EDT 2021. Contains 343940 sequences. (Running on oeis4.)