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A288675 Positions of 1 in A288673; complement of A288674. 3
2, 7, 16, 17, 20, 25, 34, 35, 42, 43, 50, 51, 54, 55, 58, 59, 62, 67, 72, 81, 82, 85, 90, 99, 100, 107, 108, 115, 116, 119, 120, 123, 124, 127, 136, 137, 144, 145, 148, 149, 152, 153, 156, 165, 166, 173, 174, 177, 178, 181, 182, 185, 190, 191, 194, 195, 198 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Conjecture:  a(n)/n->3.39..., and if m denotes this number, then -2 < m - a(n)/n) < 2 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" -> "0110", "10" -> "000"}]

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

st = ToCharacterCode[w[14]] - 48   (* A288673 *)

Flatten[Position[st, 0]]  (* A288674 *)

Flatten[Position[st, 1]]  (* A288675 *)

CROSSREFS

Cf. A288673, A288674.

Sequence in context: A338399 A262016 A129666 * A135781 A233580 A225323

Adjacent sequences:  A288672 A288673 A288674 * A288676 A288677 A288678

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 15 2017

STATUS

approved

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Last modified December 2 08:31 EST 2021. Contains 349437 sequences. (Running on oeis4.)