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 A185245 #10 May 01 2014 02:37:02 %S A185245 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, %T A185245 0,0,0,0,1,2,11,147,4215,132741,4419691,141928589,4339298225, %U A185245 128489587646 %N A185245 Number of disconnected 4-regular simple graphs on n vertices with girth at least 5. %H A185245 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 A185245 Disconnected 4-regular simple graphs with girth at least g: A033483 (g=3), A185244 (g=4), this sequence (g=5), A185246 (g=6). %K A185245 nonn,more,hard %O A185245 0,40 %A A185245 _Jason Kimberley_, Feb 22 2011