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 A185215 #6 Jun 21 2012 07:03:42 %S A185215 0,0,1,1,2,1,2,1,2,1,3,2,4,3,5,5,7,7,10,10,15,15,21,21,39,30,104,42, %T A185215 649,58,7206,80,107922,110,1876839,150,35925339,202,741413459,274, %U A185215 16356258638,511,383936223872,133225 %N A185215 Number of disconnected regular simple graphs on n vertices with girth at least 5. %H A185215 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_girth_ge_5">Disconnected regular graphs with girth at least 5</a> %H A185215 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> %K A185215 nonn,hard %O A185215 0,5 %A A185215 _Jason Kimberley_, Jun 16 2012