login
A288374
Positions of 1 in A288372; complement of A288316.
3
4, 7, 11, 13, 17, 20, 23, 27, 30, 34, 36, 40, 42, 46, 49, 53, 55, 59, 62, 65, 69, 72, 75, 79, 82, 86, 88, 92, 95, 98, 102, 105, 109, 111, 115, 117, 121, 124, 128, 130, 134, 136, 140, 143, 147, 149, 153, 156, 159, 163, 166, 170, 172, 176, 178, 182, 185, 189
OFFSET
1,1
COMMENTS
Conjecture: a(n)/n-> 3.24..., 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" -> "0001", "1" -> "01"}]
Table[w[n], {n, 0, 8}]
st = ToCharacterCode[w[11]] - 48 (* A288372 *)
Flatten[Position[st, 0]] (* A288373 *)
Flatten[Position[st, 1]] (* A288374 *)
CROSSREFS
Sequence in context: A310721 A091855 A191404 * A308199 A310722 A092403
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 09 2017
STATUS
approved