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A286491
Positions of 0 in A286490; complement of A286492.
3
1, 4, 6, 7, 10, 11, 13, 15, 16, 18, 19, 22, 24, 25, 28, 29, 31, 32, 35, 37, 38, 40, 42, 43, 46, 47, 49, 51, 52, 54, 55, 58, 60, 61, 63, 65, 66, 69, 70, 72, 73, 76, 78, 79, 82, 83, 85, 87, 88, 90, 91, 94, 96, 97, 100, 101, 103, 104, 107, 109, 110, 112, 114
OFFSET
1,2
COMMENTS
a(n) - a(n-1) is in {1,2,3} for n>=2. Conjecture: a(n)/n -> 9/5.
LINKS
EXAMPLE
As a word, A286490 = 011010011001010010011..., in which 0 is in positions 1,4,6,7,10,11,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 0}}] &, {0}, 9] (* A010060 *)
w = StringJoin[Map[ToString, s]]
w1 = StringReplace[w, {"0101" -> "0"}]
st = ToCharacterCode[w1] - 48 (* A286490 *)
Flatten[Position[st, 0]] (* A286491 *)
Flatten[Position[st, 1]] (* A286492 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 11 2017
STATUS
approved