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Number of positive integers <= 2^n of form 6 x^2 + 9 y^2.
0

%I #7 Mar 30 2012 18:35:40

%S 0,0,0,1,3,4,10,15,30,51,97,177,334,621,1182,2243,4278,8203,15779,

%T 30446,58882,114125,221636,431155,840041,1638853,3201255,6259884,

%U 12253156,24006205,47072013,92370614,181390365,356434492,700827326

%N Number of positive integers <= 2^n of form 6 x^2 + 9 y^2.

%H <a href="/index/Qua#quadpop">Index entries for sequences related to populations of quadratic forms</a>

%K nonn

%O 0,5

%A _David W. Wilson_