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Number of unlabeled, connected graphs on n vertices which have no induced subgraph isomorphic to a cricket graph (open bow-tie graph).
1

%I #14 Jan 20 2016 08:08:19

%S 1,1,2,6,20,95,541,4102,37362,402950,5107471,83311628,2006365803

%N Number of unlabeled, connected graphs on n vertices which have no induced subgraph isomorphic to a cricket graph (open bow-tie graph).

%C The cricket graph consists of a triangle and two additional vertices incident on the same vertex of the triangle.

%H F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version e8699da.

%K more,nonn

%O 1,3

%A _Jim Nastos_, Jan 24 2003

%E Definition corrected by _Falk Hüffner_, Jan 19 2016

%E a(10)-a(13) added using tinygraph by _Falk Hüffner_, Jan 20 2016