A285412 Positions of 0 in A285411; complement of A285413.

1, 3, 4, 6, 9, 11, 14, 16, 17, 19, 20, 22, 23, 25, 28, 30, 33, 35, 36, 38, 41, 43, 48, 50, 53, 55, 56, 58, 61, 63, 66, 68, 69, 71, 74, 76, 81, 83, 86, 88, 89, 91, 94, 96, 99, 101, 102, 104, 105, 107, 108, 110, 113, 115, 118, 120, 121, 123, 124, 126, 127, 129

Offset

1,2

Comments

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

This conjecture is false. In fact, a(n)/n --> (5+sqrt(17))/ 4 = 2.28077..., the same limit as for A285401(n)/n. The reason is that the generating morphism for (a(n)) has the same incidence matrix as the generating morphism for A285177. - Michel Dekking, Feb 10 2021

Links

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

Example

As a word, A285411 = 010010..., in which 0 is in positions 1,3,4,6,9,...

Mathematica

s = Nest[Flatten[# /. {0 -> {1, 1}, 1 -> {0, 1, 0}}] &, {0}, 10] (* A285411 *)
Flatten[Position[s, 0]]  (* A285412 *)
Flatten[Position[s, 1]]  (* A285413 *)

Crossrefs

Cf. A285411, A285413, A285414.

Sequence in context: A268273 A034027 A184795 * A105527 A094345 A243302

Adjacent sequences: A285409 A285410 A285411 * A285413 A285414 A285415

Keyword

nonn,easy

Author

Clark Kimberling, Apr 27 2017

Status

approved