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%I #11 Jan 24 2022 04:25:17
%S 0,0,0,1,3,4,9,16,30,54,102,190,360,688,1313,2535,4889,9464,18376,
%T 35741,69623,135899,265500,519498,1017399,1994552,3913769,7685870,
%U 15104369,29704016,58451497,115087453,226721774,446861878,881163356
%N Number of positive integers <= 2^n of form 7 x^2 + 9 y^2.
%H <a href="/index/Qua#quadpop">Index entries for sequences related to populations of quadratic forms</a>
%Y Cf. A020691.
%K nonn
%O 0,5
%A _David W. Wilson_
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