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A287126
Positions of 0 in A287125; complement of A287127.
3
1, 2, 6, 9, 12, 13, 16, 19, 20, 23, 26, 27, 28, 32, 35, 36, 39, 42, 43, 44, 48, 51, 52, 55, 58, 59, 60, 62, 65, 68, 71, 72, 75, 78, 79, 80, 84, 87, 88, 91, 94, 95, 96, 98, 101, 104, 107, 108, 111, 114, 115, 116, 120, 123, 124, 127, 130, 131, 132, 134, 137
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n-> 2.22..., and if m denotes this number, then -2 < m - a(n)/n < 2 for n >= 1.
LINKS
MATHEMATICA
s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n - 1], {"00" -> "001", "1" -> "110"}]
Table[w[n], {n, 0, 8}]
st = ToCharacterCode[w[11]] - 48 (* A287125 *)
Flatten[Position[st, 0]] (* A287126 *)
Flatten[Position[st, 1]] (* A287127 *)
Table[StringLength[w[n]], {n, 1, 35}] (* A287128 conjectured *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 06 2017
STATUS
approved