A320151 - OEIS

%I #13 Oct 08 2018 03:49:36

%S 1,2,4,8,6,10,12,8,28,22,24,40,8,32,36,16,54,32,28,56,26,32,48,40,84,

%T 74,72,48,24,92,52,96,92,32,96,80,42,64,80,80,168,124,48,72,72,94,132,

%U 104,72,126,124,96,48,96,120,168,252,96,120,168,48,196,128,88,246

%N Number of integer solutions to a^2 + 2*b^2 + 2*c^2 + 5*d^2 = n.

%C a(n) > 0 for n >= 0.

%H Seiichi Manyama, <a href="/A320151/b320151.txt">Table of n, a(n) for n = 0..10000</a>

%F G.f.: theta_3(q) * theta_3(q^2)^2 * theta_3(q^5).

%Y Cf. A320149, A320150, A236924, A320152, A320153.

%K nonn

%O 0,2

%A _Seiichi Manyama_, Oct 06 2018