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A285593
Positions of 0 in A285592; complement of A285594.
3
2, 4, 6, 9, 11, 13, 15, 17, 19, 21, 23, 25, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 51, 53, 55, 57, 59, 61, 63, 65, 67, 70, 72, 74, 77, 79, 81, 84, 86, 88, 90, 92, 94, 96, 98, 100, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 126, 128, 130, 132
OFFSET
1,1
COMMENTS
Conjecture: a(n)/n -> (1+sqrt(5/4).
LINKS
EXAMPLE
As a word, A285568 = 1010101101..., in which 0 is in positions 2,4,6,9,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 1, 0}}] &, {0}, 9] (* A285568 *)
w = StringJoin[Map[ToString, s]]
w1 = StringReplace[w, {"11" -> "1", "00" -> "0"}]
ss = ToCharacterCode[w1] - 48 (* A285592 *)
Flatten[Position[ss, 0]] (* A285593 *)
Flatten[Position[ss, 1]] (* A285594 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 30 2017
STATUS
approved