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A286485 Positions of 0 in A286484; complement of A286486. 3
1, 4, 6, 7, 10, 13, 15, 18, 19, 22, 24, 25, 28, 31, 32, 35, 37, 40, 42, 43, 46, 49, 51, 54, 55, 58, 60, 63, 65, 66, 69, 72, 73, 76, 78, 79, 82, 85, 87, 90, 91, 94, 96, 97, 100, 103, 104, 107, 109, 112, 114, 115, 118, 121, 122, 125, 127, 128, 131, 134, 136 (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 -> 9/4.

LINKS

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

EXAMPLE

As a word, A286484 = 01101001101101011001..., in which 0 is in positions 1,4,6,7,10,...

MATHEMATICA

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

w = StringJoin[Map[ToString, s]]

w1 = StringReplace[w, {"0010" -> "0"}]

st = ToCharacterCode[w1] - 48  (* A286484 *)

Flatten[Position[st, 0]]  (* A286485 *)

Flatten[Position[st, 1]]  (* A286486 *)

CROSSREFS

Cf. A010060, A286484, A286486.

Sequence in context: A326227 A103401 A285091 * A277572 A107622 A049306

Adjacent sequences:  A286482 A286483 A286484 * A286486 A286487 A286488

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, May 10 2017

STATUS

approved

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Last modified August 22 17:52 EDT 2019. Contains 326182 sequences. (Running on oeis4.)