%I #9 Sep 21 2013 12:42:14
%S 0,0,1,0,3,0,3,3,3,0,9,0,3,6,6,3,9,0,9,6,6,0,15,6,3,12,9,0,15,0,15,9,
%T 6,6,18,6,3,12,18,6,21,0,9,12,6,6,27,6,9,12,18,6,15,12,18,18,6,0,33,0,
%U 15,18,18,9,18,12,9,18,18,0,39,6,9,24,18,12,18,0,27,18,15,6,33,12,6,24,30
%N Number of ordered primitive solutions (x,y,z) to xy + yz + zx = n with x,y,z >= 1.
%H T. D. Noe, <a href="/A066958/b066958.txt">Table of n, a(n) for n=1..1000</a>
%Y Cf. A066851.
%K nonn,easy
%O 1,5
%A _Colin Mallows_, Jan 26 2002
%E More terms from _Vladeta Jovovic_, Apr 14 2002