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A285251
Positions of 1 in A285249; complement of A285250.
3
2, 4, 5, 7, 10, 12, 13, 16, 18, 20, 22, 23, 25, 28, 30, 31, 34, 36, 37, 40, 42, 43, 46, 48, 50, 52, 53, 55, 58, 60, 61, 64, 66, 68, 70, 71, 74, 76, 77, 79, 82, 84, 85, 88, 90, 92, 94, 95, 97, 100, 102, 103, 106, 108, 109, 112, 114, 115, 118, 120, 122, 124
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, A285249 = 010110100101..., in which 1 is in positions 2,4,5,7,10,12,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 0, 1}}] &, {0}, 12]; (* A285249 *)
Flatten[Position[s, 0]]; (* A285250 *)
Flatten[Position[s, 1]]; (* A285251 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 23 2017
STATUS
approved