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Number of positive integers <= 2^n of form 5 x^2 + 6 y^2.
0

%I #11 Jan 24 2022 03:56:14

%S 0,0,0,2,3,7,12,22,42,78,141,264,494,936,1778,3397,6511,12523,24149,

%T 46713,90531,175865,342166,666693,1300774,2541095,4969243,9727574,

%U 19059405,37374922,73346919,144042828,283064512,556601031,1095087423

%N Number of positive integers <= 2^n of form 5 x^2 + 6 y^2.

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

%Y Cf. A020685.

%K nonn

%O 0,4

%A _David W. Wilson_