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 A361368 #12 Mar 10 2023 10:09:09 %S A361368 2,13,199,8782,897604 %N A361368 Number of weakly connected simple planar digraphs with n unlabeled nodes. %D A361368 M. Kirchweger, M. Scheucher, and S. Szeider, SAT-Based Generation of Planar Graphs, in preparation. %Y A361368 Directed variant of A003094. %Y A361368 Cf. A000273, A003085, A361366 %K A361368 nonn,more %O A361368 2,1 %A A361368 _Manfred Scheucher_, Mar 09 2023