%I A111563
%S A111563 1,1,2,5,13,46,172,777,3783,20074,111604,646409,3846640,23410035,
%T A111563 144965988,910898943,5794179218,37248630398,241676806702,1580880366039,
%U A111563 10416314047854,69080674190341,460841447382976,3090747326749823
%N A111563 Number of connected outerplanar graphs on n unlabeled nodes.
%H A111563 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 A111563 Manuel Bodirsky, Eric Fusy, Mihyun Kang and Stefan Vigerske, <a href="http:/
               /www.arXiv.org/abs/math.CO/0511422">Enumeration of Unlabeled Outerplanar 
               Graphs</a>, 2005
%H A111563 Stefan Vigerske, <a href="http://www.math.hu-berlin.de/~stefan">Homepage</
               a>
%F A111563 Generating function und cycle index sum known, see Vigerske or Bodirsky, 
               Fusy, Kang and Vigerske.
%Y A111563 Cf. A001004, A097998, A098000.
%Y A111563 Sequence in context: A000719 A149875 A085632 this_sequence A079573 A067021 
               A098716
%Y A111563 Adjacent sequences: A111560 A111561 A111562 this_sequence A111564 A111565 
               A111566
%K A111563 nonn
%O A111563 1,3
%A A111563 Stefan Vigerske Nov 17 2005