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A288730 Positions of 0 in A288729; complement of A288731. 5
1, 2, 5, 8, 9, 10, 11, 12, 15, 18, 21, 24, 25, 26, 27, 28, 31, 34, 35, 36, 37, 38, 41, 44, 47, 50, 53, 56, 57, 58, 59, 60, 63, 66, 67, 68, 69, 70, 73, 76, 79, 82, 83, 84, 85, 86, 89, 92, 93, 94, 95, 96, 99, 102, 105, 108, 111, 114, 117, 120, 121, 122, 123 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture:  a(n)/n-> 2, and  0 < 2 - 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" -> "01"}]

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

st = ToCharacterCode[w[9]] - 48   (* A288729 *)

Flatten[Position[st, 0]]  (* A288730 *)

Flatten[Position[st, 1]]  (* A288731 *)

CROSSREFS

Cf. A288729, A288731.

Sequence in context: A071099 A078001 A072955 * A276784 A153129 A076871

Adjacent sequences:  A288727 A288728 A288729 * A288731 A288732 A288733

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 16 2017

STATUS

approved

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Last modified March 26 00:16 EDT 2019. Contains 321477 sequences. (Running on oeis4.)