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A285569
Positions of 0 in A285568; complement of A286031.
3
3, 6, 7, 10, 15, 18, 19, 22, 25, 28, 29, 32, 35, 38, 39, 42, 47, 50, 51, 54, 57, 60, 61, 64, 65, 68, 69, 72, 75, 78, 79, 82, 87, 90, 91, 94, 97, 100, 101, 104, 107, 110, 111, 114, 119, 122, 123, 126, 131, 134, 135, 138, 143, 146, 147, 150, 153, 156, 157, 160
OFFSET
1,1
COMMENTS
Conjecture: a(n)/n -> (3+sqrt(5))/2.
LINKS
EXAMPLE
As a word, A285568 = 110110011011..., in which 0 is in positions 3,6,7,10,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 1, 0}}] &, {0}, 9] (* A285568 *)
Flatten[Position[s, 0]] (* A285569 *)
Flatten[Position[s, 1]] (* A286031 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 30 2017
STATUS
approved