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a(n)=number of Gaussian integers z=a+bi satisfying n-1/2<|z|<=n+1/2, a>=0, 0<=b<a.
0

%I #7 Mar 30 2012 18:56:27

%S 0,1,2,2,4,4,5,5,6,9,7,9,9,11,11,11,14,14,14,15,14,18,18,18,18,21,21,

%T 20,23,22,25,24,24,26,28,28,29,28,31,30,33,31,33,35,33,36,35,38,38,39,

%U 40,40,43,40,42,44,43,47,42,49,48

%N a(n)=number of Gaussian integers z=a+bi satisfying n-1/2<|z|<=n+1/2, a>=0, 0<=b<a.

%H <a href="/index/Ga#gaussians">Index entries for Gaussian integers and primes</a>

%K nonn

%O 0,3

%A _Clark Kimberling_