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A288509
Positions of 0 in A288508; complement of A288510.
3
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
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
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 *)
Flatten[Position[st, 0]] (* A288509 *)
Flatten[Position[st, 1]] (* A288510 *)
CROSSREFS
Sequence in context: A307113 A341157 A025055 * A283295 A366968 A080276
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 12 2017
STATUS
approved