A285626 Positions of 0 in A285625; complement of A285627.

2, 4, 8, 10, 14, 16, 18, 20, 22, 24, 28, 30, 34, 36, 38, 40, 42, 44, 48, 50, 54, 56, 60, 62, 66, 68, 72, 74, 78, 80, 82, 84, 86, 88, 92, 94, 98, 100, 102, 104, 106, 108, 112, 114, 118, 120, 124, 126, 130, 132, 136, 138, 142, 144, 146, 148, 150, 152, 156, 158

Offset

1,1

Comments

Conjecture: a(n)/n -> (3 + sqrt(5))/2.

Links

Clark Kimberling, Table of n, a(n) for n = 1..10000 [a(7783)=20380 -> 20378 and following corrected by Georg Fischer, Jun 04 2020]

Example

As a word, A285625 = 101011101011..., in which 0 is in positions 2,4,8,10,14,...

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {1, 0, 1, 0}}] &, {0}, 10] (* A285625 *)
Flatten[Position[s, 0]]  (* A285626 *)
Flatten[Position[s, 1]]  (* A285627 *)

Crossrefs

Cf. A285625, A285627.

Sequence in context: A104197 A323440 A350804 * A284853 A189792 A286909

Adjacent sequences: A285623 A285624 A285625 * A285627 A285628 A285629

Keyword

nonn,easy

Author

Clark Kimberling, May 01 2017

Status

approved