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A289243
Positions of 0 in A289242; complement of A289244.
3
1, 2, 4, 6, 7, 9, 10, 12, 13, 14, 15, 17, 19, 20, 21, 22, 24, 26, 27, 29, 30, 31, 32, 34, 35, 36, 38, 40, 41, 43, 44, 46, 47, 48, 49, 51, 52, 53, 55, 57, 58, 59, 60, 62, 64, 65, 67, 68, 70, 71, 72, 73, 75, 77, 78, 79, 80, 82, 84, 85, 86, 87, 89, 91, 92, 94
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> sqrt(2), and -1 < sqrt(2) - a(n)/n < = -1 + sqrt(2) n >= 1.
LINKS
MATHEMATICA
z = 11; (* number of iterates *)
s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n - 1], {"00" -> "0010", "01" -> "100", "10" -> "100"}]
TableForm[Table[w[n], {n, 0, 10}]]
st = ToCharacterCode[w[z]] - 48 (* A289242 *)
Flatten[Position[st, 0]] (* A289243 *)
Flatten[Position[st, 1]] (* A289244 *)
CROSSREFS
Sequence in context: A289075 A111094 A064427 * A183569 A248612 A247000
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jul 01 2017
STATUS
approved