The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A285342 Positions of 0 in A285341; complement of A285343. 4

%I #8 Apr 25 2017 17:19:58

%S 2,6,8,12,16,20,22,26,28,32,36,40,42,46,50,54,56,60,64,68,70,74,76,80,

%T 84,88,90,94,96,100,104,108,110,114,118,122,124,128,132,136,138,142,

%U 144,148,152,156,158,162,166,170,172,176,180,184,186,190,192,196

%N Positions of 0 in A285341; complement of A285343.

%C Conjecture: 0 < n*r - a(n) < 4 for n>=1, where r = 2 + sqrt(2).

%H Clark Kimberling, <a href="/A285342/b285342.txt">Table of n, a(n) for n = 1..10000</a>

%e As a word, A285341 = 1011101..., in which 0 is in positions 2,6,8,12,16,...

%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {1, 0, 1, 1}}] &, {0}, 10]; (* A285341 *)

%t u = Flatten[Position[s, 0]]; (* A285342 *)

%t Flatten[Position[s, 1]]; (* A285343 *)

%t u/2 (* A285344)

%Y Cf. A285341, A285343, A285344.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Apr 25 2017

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 14 16:54 EDT 2024. Contains 375166 sequences. (Running on oeis4.)