%I #7 Apr 09 2021 20:33:12
%S 1,3,5,7,10,11,13,16,17,20,22,23,26,27,30,32,33,36,38,40,42,44,46,48,
%T 50,52,54,56,58,61,62,64,67,68,71,72,74,77,78,81,83,85,87,89,91,93,95,
%U 97,99,101,103,106,107,109,112,113,116,117,119,122,123,126,128,129,132,134,136,138,139,142,144,146,148,150,152,154,157,158,161,162,164,167,168,171
%N a(n) = n + [nr/s] + [nt/s]; r=1, s=Pi/2, t=2/Pi.
%C See A189515.
%t (See A189515.)
%Y Cf. A189515, A189517.
%K nonn
%O 1,2
%A _Clark Kimberling_, Apr 23 2011