%I A066851
%S A066851 0,0,1,0,3,0,3,3,3,0,9,1,3,6,6,3,9,0,9,9,6,0,15,6,3,12,10,3,15,0,15,12,
%T A066851 6,6,18,9,3,12,18,6,21,0,9,21,9,6,27,7,9,12,18,9,15,12,18,24,6,0,33,6,
%U A066851 15,18,21,12,18,12,9,27,18,0,39,9,9,24,19,21,18,0,27,27,18,6,33,18,6
%N A066851 Number of ordered solutions (x,y,z) to xy + yz + zx = n with x,y,z >= 
               1.
%H A066851 T. D. Noe, <a href="b066851.txt">Table of n, a(n) for n=1..1000</a>
%e A066851 a(5) = 3 since there are solutions (2,1,1), (1,2,1), (1,1,2).
%Y A066851 a(A025052(n))=0. Cf. A066958.
%Y A066851 Sequence in context: A097994 A053604 A066958 this_sequence A167223 A078907 
               A111815
%Y A066851 Adjacent sequences: A066848 A066849 A066850 this_sequence A066852 A066853 
               A066854
%K A066851 easy,nonn
%O A066851 1,5
%A A066851 Colin Mallows, Jan 24 2002
%E A066851 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 25 2002