%I #8 Sep 22 2020 03:12:32
%S 1,1,2,6,15,60,273,1769,14836,174111,2810354,62810605
%N Number of connected bowtie-free graphs on n nodes.
%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.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ButterflyGraph.html">Bowtie or Butterfly Graph</a>
%K nonn,more
%O 1,3
%A _Travis Hoppe_ and _Anna Petrone_, May 22 2014
%E a(11)-a(12) added using tinygraph by _Falk Hüffner_, Sep 22 2020