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%I #4 Mar 30 2012 18:57:25
%S 1,3,6,8,11,13,15,18,20,23,24,27,29,31,34,36,39,41,43,46,47,50,52,55,
%T 57,59,62,64,67,69,70,73,75,78,80,83,85,87,90,92,95,96,99,101,103,106,
%U 108,111,113,115,118,119,122,124,127,129,131,134,136,139,141,142,145,147,150,152,155,157,159,162,164,167,168,170,173,175,178,180,183,185,187,190,191,194
%N n+[nr/t]+[ns/t]; r=1, s=arctan(1/2), t=arctan(2).
%C See A189677.
%t (See A189677.)
%Y Cf. A189677, A189678.
%K nonn
%O 1,2
%A _Clark Kimberling_, Apr 25 2011
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