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 A099709 #9 Jun 25 2017 15:18:40 %S A099709 1,2,15,181,3039,66065,1779764,57667098,2198654278,96987734231, %T A099709 4883685562991,277612787114231 %N A099709 Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n loops and edges. %D A099709 G. Paquin, Dénombrement de multigraphes enrichis, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. %H A099709 G. Paquin, <a href="/A038205/a038205.pdf">Dénombrement de multigraphes enrichis</a>, Mémoire, Math. Dept., Univ. Québec à Montréal, 2004. [Cached copy, with permission] %K A099709 nonn %O A099709 0,2 %A A099709 _N. J. A. Sloane_, Oct 26 2004