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 A185203 #22 May 20 2020 12:43:02 %S A185203 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,11,550,806174, %T A185203 2585947720,9802278927562,42709859521915286,214798119408798346811, %U A185203 1251607430636395979871600,8463468717232507491862780325,66406919318277846825588474735084 %N A185203 Number of disconnected 10-regular graphs with n nodes. %H A185203 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_k-reg_girth_ge_g_index">Index of sequences counting disconnected k-regular simple graphs with girth at least g</a> %Y A185203 10-regular simple graphs: A014382 (connected), this sequence (disconnected). %Y A185203 Disconnected regular simple graphs: A068932 (any degree), A068933 (triangular array), specified degree k: A165652 (k=2), A165653 (k=3), A033483 (k=4), A165655 (k=5), A165656 (k=6), A165877 (k=7), A165878 (k=8), A185293 (k=9), this sequence (k=10), A185213 (k=11). %K A185203 nonn,hard %O A185203 0,25 %A A185203 _Jason Kimberley_, Jan 26 2012 %E A185203 Terms a(29) and beyond from _Andrew Howroyd_, May 20 2020