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%I #7 Mar 30 2012 18:35:40
%S 0,0,1,2,4,7,13,23,43,78,144,269,502,945,1794,3414,6537,12559,24195,
%T 46751,90539,175693,341530,664965,1296520,2531118,4946995,9678777,
%U 18954593,37152384,72879304,143067454,281043183,552433040,1086529470
%N Number of positive integers <= 2^n of form 3 x^2 + 6 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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