A054178 - OEIS

%I #11 Jan 24 2022 03:56:06

%S 0,0,0,2,3,6,10,19,35,63,115,215,400,759,1430,2735,5236,10058,19392,

%T 37503,72686,141120,274439,534633,1042879,2036824,3982508,7794887,

%U 15270563,29941088,58751556,115367299,226690692,445709729,876839450

%N Number of positive integers <= 2^n of form 5 x^2 + 8 y^2.

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

%Y Cf. A020687.

%K nonn

%O 0,4

%A _David W. Wilson_