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A285206
Positions of 0 in A285205; complement of A285207.
3
1, 3, 4, 6, 8, 9, 11, 12, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28, 30, 31, 33, 34, 36, 38, 39, 41, 42, 44, 46, 47, 49, 50, 52, 54, 55, 57, 58, 60, 61, 63, 64, 66, 68, 69, 71, 72, 74, 76, 77, 79, 80, 82, 83, 85, 86, 88, 90, 91, 93, 94, 96, 98, 99, 101, 102
OFFSET
1,2
COMMENTS
Conjecture: -1 < n*r - a(n) < 1, where r = 1 + sqrt(1/3).
LINKS
EXAMPLE
As a word, A285205 = 01001010010010..., in which 0 is in positions 1,3,4,6,8,...
MATHEMATICA
s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 0, 0}}] &, {0}, 12]; (* A285205 *)
Flatten[Position[s, 0]]; (* A285206 *)
Flatten[Position[s, 1]]; (* A285207 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 21 2017
EXTENSIONS
Name corrected by Michel Dekking, Feb 24 2021
STATUS
approved