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A287440 Positions of 0 in A287382; complement of A287448. 3
1, 2, 5, 6, 7, 8, 9, 11, 13, 14, 17, 18, 19, 20, 21, 24, 25, 26, 28, 29, 30, 31, 32, 34, 35, 36, 38, 39, 41, 43, 44, 47, 48, 49, 50, 51, 54, 55, 56, 57, 58, 60, 62, 63, 66, 67, 68, 70, 71, 72, 74, 75, 78, 79, 80, 81, 82, 85, 86, 87, 89, 90, 91, 93, 94, 97 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: a(n)/n -> 1.45..., and if m denotes this number, then -1 < m - a(n)/n) < 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" -> "1000", "10" -> "001"}]

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

st = ToCharacterCode[w[23]] - 48   (* A287382 *)

Flatten[Position[st, 0]]  (* A287440 *)

Flatten[Position[st, 1]]  (* A287448 *)

CROSSREFS

Cf. A287382, A287448.

Sequence in context: A039067 A202114 A228090 * A111175 A047326 A039044

Adjacent sequences:  A287437 A287438 A287439 * A287441 A287442 A287443

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 18 2017

STATUS

approved

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Last modified July 23 16:10 EDT 2019. Contains 325258 sequences. (Running on oeis4.)