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%I #10 Nov 08 2018 12:05:28
%S 1,2,2,2,3,6,8,8,8,12,19,22,22,26,37,48,53,58,72,92,108,118,136,166,
%T 195,222,254,298,346,394,453,524,600,672,762,884,1011,1126,1255,1438,
%U 1652,1850,2047,2302,2626,2960,3274,3636,4095,4602,5112,5662,6319,7056,7834
%N Expansion of 1/2 * Product_{i>=0, j>=0} (1 + x^(i^2 + j^2)).
%H Vaclav Kotesovec, <a href="/A321380/b321380.txt">Table of n, a(n) for n = 0..10000</a>
%F G.f.: Product_{k>0} (1 + x^k)^A000925(k).
%Y Cf. A000925, A033461, A321381.
%K nonn
%O 0,2
%A _Seiichi Manyama_, Nov 08 2018