%I A030243
%S A030243 0,0,4,34,580,23702
%N A030243 Number of nonisomorphic relations with a nontrivial symmetry.
%Y A030243 Equals A000595-A030242.
%Y A030243 Sequence in context: A081972 A158961 A134354 this_sequence A088077 A162079 
               A113231
%Y A030243 Adjacent sequences: A030240 A030241 A030242 this_sequence A030244 A030245 
               A030246
%K A030243 nonn,more
%O A030243 0,3
%A A030243 Christian G. Bower (bowerc(AT)usa.net)