A288509 - OEIS

A288509

Positions of 0 in A288508; complement of A288510.

1, 2, 3, 5, 6, 8, 10, 12, 13, 15, 17, 19, 20, 22, 23, 24, 26, 27, 28, 30, 32, 34, 35, 37, 38, 39, 41, 42, 43, 45, 47, 49, 50, 52, 53, 55, 56, 58, 59, 60, 62, 63, 65, 66, 68, 69, 70, 72, 73, 74, 76, 77, 78, 80, 82, 84, 85, 87, 88, 90, 91, 93, 94, 95, 97, 98

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Conjecture: a(n)/n -> 1.52..., and if m denotes this number, then -1 < m - 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" -> "0101", "10" -> "001"}]

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

st = ToCharacterCode[w[18]] - 48 (* A288508 *)