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A285667 Positions of 0 in A286939; complement of A286058. 3
1, 2, 4, 6, 7, 8, 10, 11, 12, 14, 15, 17, 18, 19, 21, 22, 24, 25, 26, 28, 30, 31, 32, 34, 35, 37, 38, 39, 41, 43, 44, 45, 47, 48, 50, 51, 52, 54, 55, 56, 58, 59, 61, 62, 63, 65, 67, 68, 69, 71, 72, 74, 75, 76, 78, 79, 80, 82, 83, 85, 86, 87, 89, 91, 92, 93 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: a(n)/n)) -> 1.41... , and if m denotes this number, then -1 < a(n)/n - m < 1 for n >= 1.

LINKS

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

MATHEMATICA

s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];

w[n_] := StringReplace[w[n - 1], {"00" -> "001", "1" -> "010"}]

Table[w[n], {n, 0, 8}]

st = ToCharacterCode[w[11]] - 48   (* A285666 *)

Flatten[Position[st, 0]]  (* A285667 *)

Flatten[Position[st, 1]]  (* A286058 *)

CROSSREFS

Cf. A285666, A286058.

Sequence in context: A075313 A183858 A135673 * A187568 A187228 A187905

Adjacent sequences:  A285664 A285665 A285666 * A285668 A285669 A285670

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 05 2017

STATUS

approved

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Last modified August 20 19:51 EDT 2019. Contains 326155 sequences. (Running on oeis4.)