%I A007867
%S A007867 1,1,2,7,22,82,307
%N A007867 Complementary pairs of `homogenized' N-free graphs with n nodes.
%D A007867 J. Covington, Proc. London Math. Soc., vol. ?, page ?, year ?
%Y A007867 Sequence in context: A110137 A097967 A052879 this_sequence A014558 A150322 
               A150323
%Y A007867 Adjacent sequences: A007864 A007865 A007866 this_sequence A007868 A007869 
               A007870
%K A007867 nonn
%O A007867 1,3
%A A007867 Peter Cameron [ P.J.Cameron(AT)qmw.ac.uk ]