%I A005333 M4030
%S A005333 1,5,205,36317,23679901,56294206205,502757743028605,
%T A005333 17309316971673776957,2333508400614646874734621,1243000239291173897659593056765
%N A005333 Number of 2-colored graphs.
%D A005333 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A005333 F. Harary and R. W. Robinson, Labeled bipartite blocks, Canad. J. Math., 
               31 (1979), 60-68.
%Y A005333 Sequence in context: A012811 A060486 A002438 this_sequence A162087 A068531 
               A144139
%Y A005333 Adjacent sequences: A005330 A005331 A005332 this_sequence A005334 A005335 
               A005336
%K A005333 nonn
%O A005333 1,2
%A A005333 N. J. A. Sloane (njas(AT)research.att.com).