A111758 - OEIS

%I #7 Dec 12 2014 19:23:29

%S 1,1,1,3,4,12,24,74,193,635,1990,6933,24144,88203,326053,1234735,

%T 4732762,18403211,72282202,286705378

%N Number of bipartite connected outerplanar graphs on n unlabeled nodes.

%H M. Bordirsky, É. Fusy, M. Kang and S. Vigerske, <a href="http://www.arXiv.org/abs/math.CO/0511422">Enumeration of Unlabeled Outerplanar Graphs</a>, 2005

%H S. Vigerske, <a href="http://www.informatik.hu-berlin.de/Forschung_Lehre/algorithmen/en/forschung/planar/vigerske.html">Asymptotic enumeration of unlabeled outerplanar graphs, Diploma thesis</a>, Humboldt University Berlin, 2005

%H S. Vigerske, <a href="http://www.math.hu-berlin.de/~stefan">Homepage</a>

%Y Cf. A111563.

%K nonn

%O 1,4

%A Stefan Vigerske, Nov 21 2005