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A285257
Positions of 1 in A285255; complement of A285256.
3
2, 3, 5, 7, 10, 11, 14, 15, 17, 19, 22, 23, 26, 27, 29, 32, 33, 35, 37, 40, 41, 44, 45, 47, 50, 51, 53, 55, 58, 59, 62, 63, 65, 68, 69, 71, 74, 75, 77, 79, 82, 83, 86, 87, 89, 91, 94, 95, 98, 99, 101, 104, 105, 107, 110, 111, 113, 115, 118, 119, 122, 123
OFFSET
1,1
COMMENTS
Conjecture: 2n - a(n) is in {0,1} for n>=1.
See the comments of A285250 for a proof of this conjecture. - Michel Dekking, Oct 07 2020
LINKS
EXAMPLE
As a word, A285255 = 011010..., in which 0 is in positions 1,4,6,8,9,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 0}}] &, {0}, 12]; (* A285255 *)
Flatten[Position[s, 0]]; (* A285256 *)
Flatten[Position[s, 1]]; (* A285257 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 24 2017
STATUS
approved