%I #14 Sep 23 2020 16:01:04
%S 1,1,2,4,9,26,80,340,1690,11432,101142,1228608,20329150
%N Number of simple connected graphs with n nodes that are have no subgraph isomorphic to diamond graph or the bull graph.
%H Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a>
%H F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version 29e68fa.
%Y Cf. A242790 (no diamond subgraphs), A244427 (no bull subgraphs).
%K nonn,more
%O 1,3
%A _Travis Hoppe_ and _Anna Petrone_, Jun 06 2014
%E a(11)-a(13) added using tinygraph by _Falk Hüffner_, Sep 23 2020