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A288712 Positions of 0 in A288711; complement of A288713. 4
2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 30, 31, 32, 34, 35, 36, 37, 38, 40, 41, 42, 44, 45, 46, 47, 48, 50, 51, 52, 53, 54, 56, 57, 58, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 72, 73, 74, 76, 77, 78, 79, 80, 82 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n-> -1 + sqrt(5), and if m denotes this number, then -1 < m - a(n)/n) < 1 for n >= 1.

Appears to differ from A288708 only at a(1). - R. J. Mathar, Jun 19 2017

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" -> "00"}]

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

st = ToCharacterCode[w[9]] - 48   (* A288711 *)

Flatten[Position[st, 0]]  (* A288712 *)

Flatten[Position[st, 1]]  (* A288713 *)

CROSSREFS

Cf. A288711, A288713.

Sequence in context: A114024 A030173 A048265 * A002180 A207333 A179182

Adjacent sequences:  A288709 A288710 A288711 * A288713 A288714 A288715

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 16 2017

STATUS

approved

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Last modified February 22 09:12 EST 2020. Contains 332133 sequences. (Running on oeis4.)