This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A111759 #8 Dec 12 2014 19:30:35 %S A111759 1,2,3,7,12,29,61,162,412,1221,3665,12031,40514,143244,518247,1926638, %T A111759 7285835,28013935,109058879,429366751 %N A111759 Number of bipartite outerplanar graphs on n unlabeled nodes. %H A111759 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 A111759 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 A111759 S. Vigerske, <a href="http://www.math.hu-berlin.de/~stefan">Homepage</a> %F A111759 Generating function and cycle index sum known, see Vigerske. %Y A111759 Cf. A111564. %K A111759 nonn %O A111759 1,2 %A A111759 Stefan Vigerske, Nov 21 2005