%I #26 Nov 28 2021 16:32:03
%S 0,0,0,1,2,13,111,2004,66410,3902344,388624106,65142804740
%N Number of simple unlabeled n-node graphs of connectivity 3.
%H Jens M. Schmidt, <a href="/A324088/a324088.html">Data files in graph6 format</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/k-ConnectedGraph.html">k-Connected Graph.</a>
%F a(n) = A006290(n) - A086216(n). - _Andrew Howroyd_, Sep 04 2019
%Y Column k=3 of A259862.
%Y Cf. A000719, A006290, A052442, A052443, A052445, A086216.
%K nonn,more
%O 1,5
%A _Eric W. Weisstein_
%E Name edited and a(8)-a(11) by _Jens M. Schmidt_, Feb 18 2019
%E a(3)-a(4) corrected by _Andrew Howroyd_, Aug 28 2019
%E a(12) from _Sean A. Irvine_, Nov 28 2021