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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A327221 Positions of 1's in {A327219(k) : n > 0}. 3

%I #11 Sep 30 2019 10:46:59

%S 3,4,7,8,11,12,15,16,17,20,21,24,25,28,29,32,33,37,38,41,42,45,46,49,

%T 50,51,54,55,58,59,62,63,66,67,71,72,75,76,79,80,83,84,87,88,92,93,96,

%U 97,100,101,104,105,106,109,110,113,114,117,118,121,122

%N Positions of 1's in {A327219(k) : n > 0}.

%C Although a(n)/n->2, the sequence 2*n-a(n) appears to be unbounded below and above.

%C Positive integers k such that A327219(k) = 1. - _Jianing Song_, Sep 30 2019

%H Clark Kimberling and Jianing Song, <a href="/A327221/b327221.txt">Table of n, a(n) for n = 1..10000</a>

%t r = (1+Sqrt[5])/2; z = 200;

%t t = Table[Floor[(2 n + 4) r] - Floor[(n*r + 4 r)] - Floor[n*r], {n, 1, z}] (* {A327219(n) : n > 0} *)

%t Flatten[Position[t, 0]] (* A327220 *)

%t Flatten[Position[t, 1]] (* A327221 *)

%Y Cf. A327219, A327220 (complement).

%K nonn,easy

%O 1,1

%A _Clark Kimberling_, Sep 02 2019

%E Corrected by _Jianing Song_, Sep 30 2019

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)