login
A288513
Positions of 0 in A288512; complement of A288514.
3
1, 3, 5, 6, 7, 9, 10, 11, 13, 14, 16, 17, 19, 20, 21, 23, 24, 26, 27, 29, 30, 31, 33, 35, 37, 38, 40, 42, 44, 45, 47, 48, 50, 51, 53, 54, 55, 57, 59, 61, 62, 64, 66, 68, 69, 71, 72, 74, 75, 77, 78, 79, 81, 82, 83, 85, 86, 87, 89, 91, 93, 94, 96, 97, 98, 100
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[19]] - 48 (* A288512 *)
Flatten[Position[st, 0]] (* A288513 *)
Flatten[Position[st, 1]] (* A288514 *)
CROSSREFS
Sequence in context: A335740 A352873 A047984 * A125236 A137624 A238246
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 13 2017
STATUS
approved