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 A059713 #5 Jun 16 2014 15:37:17 %S A059713 1,2,6,19,63,214,738,2571,9020,31806,112572,399548,1421145,5063254, %T A059713 18062902,64505148,230547424,824547052,2950565215,10562978104 %N A059713 Number of multi-directed animals on the square lattice. %C A059713 This class of animals is in bijection with a simple class of heaps of dimers. It generalizes directed animals. %D A059713 M. Bousquet-Mélou and A. Rechnitzer, Lattice animals and heaps of dimers, Discrete Math. 258 (2002), no. 1-3, 235-274. %H A059713 M. Bousquet-Mélou and A. Rechnitzer, <a href="http://www.labri.fr/Perso/~bousquet/Articles/Klarner/article.ps.gz">Lattice animals and heaps of dimers</a> %F A059713 The generating function is known in closed form. Closed, but big. It is proved to be non-D-finite. %Y A059713 Directed animals: A005773. %K A059713 nonn %O A059713 1,2 %A A059713 _Mireille Bousquet-Mélou_, Feb 08 2001