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A288998
Positions of 0 in A288997; complement of A288999.
4
1, 2, 4, 5, 6, 8, 9, 11, 12, 13, 15, 16, 18, 19, 21, 22, 23, 25, 26, 28, 29, 30, 32, 33, 35, 36, 38, 39, 40, 42, 43, 45, 46, 47, 49, 50, 52, 53, 54, 56, 57, 59, 60, 62, 63, 64, 66, 67, 69, 70, 71, 73, 74, 76, 77, 79, 80, 81, 83, 84, 86, 87, 88, 90, 91, 93
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> sqrt(2), and 0 < sqrt(2) - a(n)/n < -1 + sqrt(2) for n >= 1.
LINKS
MATHEMATICA
z = 10; (* number of iterates *)
s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "01" -> "001", "10" -> "001"}]
TableForm[Table[w[n], {n, 0, 10}]]
st = ToCharacterCode[w[z]] - 48 (* A288997 *)
Flatten[Position[st, 0]] (* A288998 *)
Flatten[Position[st, 1]] (* A288999 *)
CROSSREFS
Sequence in context: A247964 A047317 A376953 * A289026 A289113 A374638
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 25 2017
STATUS
approved