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A285209
Positions of 0 in A285208; complement of A285210.
3
2, 3, 5, 6, 8, 10, 11, 13, 14, 16, 17, 19, 20, 22, 24, 25, 27, 28, 30, 32, 33, 35, 36, 38, 39, 41, 42, 44, 46, 47, 49, 50, 52, 54, 55, 57, 58, 60, 62, 63, 65, 66, 68, 70, 71, 73, 74, 76, 77, 79, 80, 82, 84, 85, 87, 88, 90, 92, 93, 95, 96, 98, 99, 101, 102
OFFSET
1,1
COMMENTS
Conjecture: -1 < n*r - a(n) < 1, where r = 1 + sqrt(1/3).
LINKS
EXAMPLE
As a word, A285205 = 1001001010..., in which 0 is in positions 2,3,5,6,8,10,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 0, 0}}] &, {0}, 11]; (* A285208 *)
Flatten[Position[s, 0]]; (* A285209 *)
Flatten[Position[s, 1]]; (* A285210 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 21 2017
STATUS
approved