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A288552 Positions of 0 in A288551; complement of A288553. 3
1, 2, 5, 6, 9, 10, 13, 16, 17, 20, 23, 24, 27, 28, 31, 32, 35, 38, 39, 42, 45, 46, 49, 50, 53, 54, 57, 60, 61, 64, 67, 69, 71, 74, 77, 78, 81, 84, 85, 88, 89, 92, 93, 96, 99, 100, 103, 106, 108, 110, 113, 116, 117, 120, 123, 124, 127, 128, 131, 132, 135, 138 (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[10]] - 48   (* A288551 *)

Flatten[Position[st, 0]]  (* A288552 *)

Flatten[Position[st, 1]]  (* A288553 *)

CROSSREFS

Cf. A288551, A288553, A288276.

Sequence in context: A166097 A285502 A276883 * A187583 A000277 A003664

Adjacent sequences:  A288549 A288550 A288551 * A288553 A288554 A288555

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 14 2017

STATUS

approved

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Last modified August 19 20:20 EDT 2019. Contains 326133 sequences. (Running on oeis4.)