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A285207 Positions of 1 in A285205; complement of A285206. 3
2, 5, 7, 10, 13, 15, 18, 21, 24, 27, 29, 32, 35, 37, 40, 43, 45, 48, 51, 53, 56, 59, 62, 65, 67, 70, 73, 75, 78, 81, 84, 87, 89, 92, 95, 97, 100, 103, 105, 108, 111, 113, 116, 119, 122, 125, 127, 130, 133, 135, 138, 141, 144, 147, 149, 152, 155, 157, 160 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Conjecture: 0 < n*r - a(n) < 3, where r = 1 + sqrt(3).
LINKS
EXAMPLE
As a word, A285205 = 01001010010010..., in which 1 is in positions 2,5,7,10,,...
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
Sequence in context: A022841 A038127 A047480 * A140398 A211273 A344988
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 21 2017
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)