%I #4 Mar 30 2012 18:57:22
%S 0,0,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,
%T 0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,
%U 0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1
%N [nr]-[kr]-[nr-kr], where r=sqrt(3), k=2, [ ]=floor.
%C See A188014.
%F [nr]-[2r]-[nr-2r], where r=sqrt(3).
%t r=3^(1/2)); k=2;
%t t=Table[Floor[n*r]-Floor[(n-k)*r]-Floor[k*r],{n,1,220}] (*A188071*)
%t Flatten[Position[t,0]] (*A188072*)
%t Flatten[Position[t,1]] (*A188073*)
%Y Cf. A188014, A188072, A188073.
%K nonn
%O 1
%A _Clark Kimberling_, Mar 20 2011
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