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A285627
Positions of 1 in A285625; complement of A285626.
3
1, 3, 5, 6, 7, 9, 11, 12, 13, 15, 17, 19, 21, 23, 25, 26, 27, 29, 31, 32, 33, 35, 37, 39, 41, 43, 45, 46, 47, 49, 51, 52, 53, 55, 57, 58, 59, 61, 63, 64, 65, 67, 69, 70, 71, 73, 75, 76, 77, 79, 81, 83, 85, 87, 89, 90, 91, 93, 95, 96, 97, 99, 101, 103, 105
OFFSET
1,2
COMMENTS
Conjecture: a(n)/n -> (1 + sqrt(5))/2 = golden ratio (A001622).
LINKS
EXAMPLE
As a word, A285625 = 101011101011..., in which 1 is in positions 1,3,5,6,7,9,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 1, 0}}] &, {0}, 10] (* A285625 *)
Flatten[Position[s, 0]] (* A285626 *)
Flatten[Position[s, 1]] (* A285627 *)
CROSSREFS
Sequence in context: A284015 A286908 A284852 * A050876 A346125 A320472
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 01 2017
STATUS
approved