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%I #6 Jun 28 2024 09:09:10
%S 0,0,0,0,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,0,0,2,0,2,0,0,
%T 0,0,0,0,0,0,0,2,0,0,2,1,0,0,0,0,0,0,0,0,0,2,0,0,0,2,0,2,0,0,0,0,0,0,
%U 0,0,0,2,0,0,0,0,2,0,0,2,1,0,0,0,0,0,0,0,0,2,0,0,0,0,0,2,0,0,0,2,0,2
%N Number of ordered pairs (x,y) of positive integers such that x^2 + 3*x*y + y^2 = n.
%H Seiichi Manyama, <a href="/A374089/b374089.txt">Table of n, a(n) for n = 0..10000</a>
%K nonn
%O 0,12
%A _Seiichi Manyama_, Jun 28 2024