%I #8 Jul 04 2017 21:19:24
%S 2,7,9,14,19,21,26,31,36,38,43,48,50,55,60,65,67,72,77,79,84,89,91,94,
%T 96,101,106,108,113,118,120,125,130,135,137,142,147,149,154,159,164,
%U 166,171,176,178,183,188,190,195,200,205,207,212,217,219,224,229,234,236,241,246,248,253,258,260,263,265,270,275,277,282,287
%N Positions of 3 in A190561.
%C See A190561.
%H G. C. Greubel, <a href="/A190565/b190565.txt">Table of n, a(n) for n = 1..1000</a>
%t r = Sqrt[2]; b = 4; c = 3;
%t f[n_] := Floor[(b*n + c)*r] - b*Floor[n*r] - Floor[c*r];
%t t = Table[f[n], {n, 1, 200}] (* A190561 *)
%t Flatten[Position[t, 0]] (* A190562 *)
%t Flatten[Position[t, 1]] (* A190563 *)
%t Flatten[Position[t, 2]] (* A190564 *)
%t Flatten[Position[t, 3]] (* A190565 *)
%t Flatten[Position[t, 4]] (* A190566 *)
%Y Cf. A190561.
%K nonn
%O 1,1
%A _Clark Kimberling_, May 12 2011