%I A005275 M1309
%S A005275 1,2,4,243,198815685282
%N A005275 (7,6)-graphs.
%D A005275 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A005275 R. E. Peile, Some Topics in Combinatorial Theory. Ph. D. Dissertation, 
               Oxford University, 1979.
%Y A005275 Sequence in context: A018747 A110067 A145996 this_sequence A009673 A018770 
               A058990
%Y A005275 Adjacent sequences: A005272 A005273 A005274 this_sequence A005276 A005277 
               A005278
%K A005275 nonn
%O A005275 5,2
%A A005275 N. J. A. Sloane (njas(AT)research.att.com).