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%I #7 Mar 30 2012 18:35:40
%S 0,0,1,2,4,7,12,21,38,69,126,234,437,825,1565,2982,5710,10967,21138,
%T 40842,79099,153510,298435,581095,1133110,2212231,4324045,8460649,
%U 16570079,32480219,63717408,125088092,245735287,483050536,950104880
%N Number of positive integers <= 2^n of form 3 x^2 + 3 y^2.
%H <a href="/index/Qua#quadpop">Index entries for sequences related to populations of quadratic forms</a>
%K nonn
%O 0,4
%A _David W. Wilson_
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