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A287531
Positions of 0 in A287530; complement of A287551.
3
2, 3, 4, 6, 7, 10, 11, 12, 14, 15, 16, 17, 18, 20, 21, 23, 25, 26, 29, 30, 31, 33, 34, 35, 37, 38, 41, 42, 43, 44, 45, 48, 49, 50, 52, 53, 54, 55, 56, 59, 60, 61, 62, 63, 65, 66, 67, 69, 70, 72, 74, 75, 78, 79, 80, 82, 83, 84, 86, 87, 90, 91, 92, 94, 95, 96
OFFSET
1,1
COMMENTS
Conjecture: a(n)/ -> 1.45..., 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" -> "1000", "10" -> "001"}]
Table[w[n], {n, 0, 8}]
st = ToCharacterCode[w[23]] - 48 (* A287530 *)
Flatten[Position[st, 0]] (* A287531 *)
Flatten[Position[st, 1]] (* A287551 *)
CROSSREFS
Sequence in context: A373041 A155905 A375928 * A047518 A335031 A179834
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 18 2017
STATUS
approved