%I #13 Jan 15 2016 14:56:22
%S 1,1,2,4,11,35,124,500,2224,10640,53920,285535,1563849,8798306
%N Number of graphs with n nodes that are chordal and are K_4 free.
%C K_4 is the complete graph on four vertices.
%H Travis Hoppe and Anna Petrone, <a href="https://github.com/thoppe/Encyclopedia-of-Finite-Graphs">Encyclopedia of Finite Graphs</a>
%H T. Hoppe and A. Petrone, <a href="http://arxiv.org/abs/1408.3644">Integer sequence discovery from small graphs</a>, arXiv preprint arXiv:1408.3644, 2014
%H F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version 69d4186
%Y Cf. A048192 (chordal graphs), A079574 (K_4 free graphs).
%K nonn,more
%O 1,3
%A _Travis Hoppe_ and _Anna Petrone_, Jun 27 2014
%E a(11)-a(14) added using tinygraph by _Falk Hüffner_, Jan 15 2016