login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A285276 Positions of 1 in A285274; complement of A285275. 5

%I

%S 2,3,4,5,7,10,11,12,14,15,16,18,19,20,21,24,25,26,28,29,30,32,33,34,

%T 35,38,39,40,42,43,44,46,47,48,49,52,53,54,56,57,58,60,61,62,64,65,66,

%U 67,69,72,73,74,76,77,78,80,81,82,84,85,86,87,90,91,92,93

%N Positions of 1 in A285274; complement of A285275.

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

%H Clark Kimberling, <a href="/A285276/b285276.txt">Table of n, a(n) for n = 1..10000</a>

%e As a word, A285274 = 011110..., in which 1 is in positions 2,3,4,5,7,10,...

%t s = Nest[Flatten[# /. {0 -> {1, 0}, 1 -> {0, 1, 1, 1}}] &, {0}, 10]; (* A285274 *)

%t Flatten[Position[s, 0]]; (* A285275 *)

%t Flatten[Position[s, 1]]; (* A285276 *)

%Y Cf. A285274, A285277, A285278.

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Apr 24 2017

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 00:35 EDT 2021. Contains 348048 sequences. (Running on oeis4.)