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A288474 Positions of 0 in A288473; complement of A288475. 3
1, 3, 5, 8, 11, 13, 15, 18, 21, 23, 25, 28, 31, 32, 35, 38, 40, 42, 45, 48, 49, 52, 55, 57, 59, 62, 65, 67, 69, 72, 75, 77, 79, 82, 85, 86, 89, 92, 94, 96, 99, 102, 103, 106, 109, 111, 113, 116, 119, 121, 123, 126, 129, 131, 133, 136, 139, 140, 143, 146, 148 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture:  a(n)/n - >2.34..., and if m denotes this number, then -1 < 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" -> "0101", "1" -> "011"}]

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

st = ToCharacterCode[w[11]] - 48   (* A288473 *)

Flatten[Position[st, 0]]  (* A288474 *)

Flatten[Position[st, 1]]  (* A288475 *)

Table[StringLength[w[n]], {n, 1, 35}] (* A288476 conjectured *)

CROSSREFS

Cf. A288473, A288475, A288476.

Sequence in context: A184332 A050098 A025512 * A310026 A213732 A247909

Adjacent sequences:  A288471 A288472 A288473 * A288475 A288476 A288477

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 11 2017

STATUS

approved

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Last modified July 21 02:02 EDT 2019. Contains 325189 sequences. (Running on oeis4.)