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%I A188395 #11 Sep 08 2022 08:45:56
%S A188395 1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,
%T A188395 1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,0,
%U A188395 1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1
%N A188395 a(n) = [n*r +k*r]-[n*r]-[k*r], where r=1/sqrt(2), k=4, [ ]=floor.
%C A188395 See A187950.
%H A188395 G. C. Greubel, <a href="/A188395/b188395.txt">Table of n, a(n) for n = 1..10000</a>
%F A188395 a(n) = [n*r+4*r]-[n*r]-[4*r], where r=1/sqrt(2).
%t A188395 r=2^(-1/2); k=4;
%t A188395 t=Table[Floor[n*r+k*r]-Floor[n*r]-Floor[k*r], {n,1,220}]   (* A188395 *)
%t A188395 Flatten[Position[t,0] ]   (* A188396 *)
%t A188395 Flatten[Position[t,1] ]   (* A188397 *)
%o A188395 (PARI) for(n=1,100, print1(floor((n+4)/sqrt(2)) - floor(n/sqrt(2)) - floor(4/sqrt(2)), ", ")) \\ _G. C. Greubel_, Apr 25 2018
%o A188395 (Magma) [Floor((n+4)/Sqrt(2)) - Floor(n/Sqrt(2)) - Floor(4/Sqrt(2)): n in [1..100]]; // _G. C. Greubel_, Apr 25 2018
%Y A188395 Cf. A187950.
%K A188395 nonn
%O A188395 1
%A A188395 _Clark Kimberling_, Mar 30 2011

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