A327209 - OEIS

%I #11 Oct 02 2019 05:41:21

%S 1,3,5,7,9,11,14,16,18,20,22,24,26,27,29,31,33,35,37,39,41,42,44,46,

%T 48,50,52,55,57,59,61,63,65,67,70,72,74,76,78,80,82,83,85,87,89,91,93,

%U 95,97,98,100,102,104,106,108,111,113,115,117,119,121,123

%N Positions of 0's in {A327208(n) : 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 A327208(k) = 0. - _Jianing Song_, Sep 30 2019

%H Clark Kimberling and Jianing Song, <a href="/A327209/b327209.txt">Table of n, a(n) for n = 1..10000</a>

%t r = Sqrt[3]; z = 200;

%t t = Table[Floor[(2 n + 2)*r] - Floor[n*r + 2 r] - Floor[n*r], {n, 1, z}]  (* {A327208(n) : n > 0} *)

%t Flatten[Position[t, 0]] (* A327209 *)

%t Flatten[Position[t, 1]] (* A327210 *)

%Y Cf. A327208, A327210 (complement).

%K nonn,easy

%O 1,2

%A _Clark Kimberling_, Aug 26 2019

%E Corrected by _Jianing Song_, Sep 30 2019