A284941 Positions of 1 in A284939; complement of A080580.

2, 3, 4, 6, 7, 8, 10, 11, 12, 14, 16, 17, 18, 20, 21, 22, 24, 25, 26, 28, 30, 31, 32, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 58, 59, 60, 62, 64, 65, 66, 68, 69, 70, 72, 73, 74, 76, 78, 79, 80, 82, 83, 84, 86, 87, 88, 90, 92, 93

Offset: 1

Author

Clark Kimberling, Apr 18 2017

Keywords

• nonn
• easy

Comments

Conjecture: -1 < n*sqrt(2) - a(n) < 2 for n >= 1.

Examples

			As a word, A284939 = 0111011101..., in which 1 is in positions 2,3,4,6,7,8,...
		

Links

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

Crossrefs

Cf. A284939, A080580.

Programs

Mathematica

s = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {1, 1, 0, 1}}] &, {0}, 6] (* A284939 *)
Flatten[Position[s, 0]]  (* A080580 *)
Flatten[Position[s, 1]]  (* A284941 *)