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A285413

Positions of 1 in A285411; complement of A285412.

2, 5, 7, 8, 10, 12, 13, 15, 18, 21, 24, 26, 27, 29, 31, 32, 34, 37, 39, 40, 42, 44, 45, 46, 47, 49, 51, 52, 54, 57, 59, 60, 62, 64, 65, 67, 70, 72, 73, 75, 77, 78, 79, 80, 82, 84, 85, 87, 90, 92, 93, 95, 97, 98, 100, 103, 106, 109, 111, 112, 114, 116, 117

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Conjecture: a(n)/n -> (61-sqrt(3))/26 = 2.279...

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

EXAMPLE

As a word, A285411 = 010010..., in which 1 is in positions 2,5,7,8,10,...

MATHEMATICA

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 0}}] &, {0}, 10] (* A285411 *)

Flatten[Position[s, 0]] (* A285412 *)