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%I #17 Jun 04 2020 11:09:42
%S 1,2,4,10,26,85,302,1285,6170,34294,227417,2001617,26098641,520051389,
%T 15041205304
%N Numbers of claw-free simple graphs (not necessarily connected) on n nodes.
%H F. Hüffner, <a href="https://github.com/falk-hueffner/tinygraph">tinygraph</a>, software for generating integer sequences based on graph properties, version 8489dde.
%H Avraham Itzhakov and Michael Codish, <a href="http://arxiv.org/abs/1511.08205">Breaking Symmetries in Graph Search with Canonizing Sets</a>, arXiv:1511.08205 [cs.AI], 2015
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Claw-FreeGraph.html">Claw-Free Graph</a>
%Y Cf. A022562 (inv. Euler transf.).
%K nonn,more
%O 1,2
%A _Eric W. Weisstein_, Jul 28 2003
%E a(10) from _Michael Codish_, Dec 01 2015
%E a(11)-a(15) added using tinygraph by _Falk Hüffner_, Jan 12 2016