



2, 4, 5, 6, 8, 9, 12, 14, 16, 17, 18, 20, 21, 24, 25, 26, 29, 30, 31, 34, 36, 38, 39, 40, 42, 43, 46, 47, 48, 51, 53, 55, 56, 57, 60, 62, 63, 64, 66, 67, 70, 72, 74, 75, 76, 78, 79, 82, 84, 86, 87, 88, 90, 91, 94, 95, 96, 99, 100, 101, 104, 106, 108, 109
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OFFSET

1,1


COMMENTS

Conjecture: 1 < n*r  a(n) < 2 for n>=1, where r = 1 + sqrt(1/2).


LINKS



EXAMPLE

As a word, A285034 = 10100010..., in which 0 is in positions 2,4,5,6,8,9,11,...


MATHEMATICA

s = Nest[Flatten[# /. {0 > {1, 0}, 1 > {0, 0, 1}}] &, {0}, 9]; (* A285034 *)
Flatten[Position[s, 0]]; (* A285035 *)
Flatten[Position[s, 1]]; (* A285036 *)


CROSSREFS



KEYWORD

nonn,easy


AUTHOR



STATUS

approved



