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Number of weakly triangulated perfect graphs on n nodes.
1

%I #16 Sep 27 2022 12:16:44

%S 1,2,4,11,33,146,886,8483,126029,2866876,95717334,4534590984

%N Number of weakly triangulated perfect graphs on n nodes.

%H S. Hougardy, <a href="http://www.or.uni-bonn.de/~hougardy/">Home Page</a>

%H S. Hougardy, <a href="http://dx.doi.org/10.1016/j.disc.2006.05.021">Classes of perfect graphs</a>, Discr. Math. 306 (2006), 2529-2571.

%F Euler transform of A079457. - _Falk Hüffner_, Jan 15 2016

%K nonn,more

%O 1,2

%A _N. J. A. Sloane_, Oct 18 2006

%E a(10) and a(11) added using formula by _Falk Hüffner_, Jan 15 2016