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 A185034 #13 May 01 2014 02:37:01 %S A185034 0,0,0,0,0,0,1,2,9,35,176,1151,10329,120456,1701834,27500216, %T A185034 492269472,9599036308,201954501535,4555108534562 %N A185034 Number of disconnected 3-regular simple graphs on 2n vertices with girth exactly 4. %H A185034 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_k-reg_girth_eq_g_index">Index of sequences counting disconnected k-regular simple graphs with girth exactly g</a> %H A185034 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_k-reg_girth_eq_g_index">Index of sequences counting disconnected k-regular simple graphs with girth exactly g</a> %F A185034 a(n) = A185234(n) - A185235(n). %Y A185034 Disconnected k-regular simple graphs with girth exactly 4: this sequence (k=3), A185044 (k=4). %Y A185034 Disconnected 3-regular simple graphs with girth exactly g: A185033 (g=3), this sequence (g=4), A185035 (g=5), A185036 (g=6), A185037 (g=7). %K A185034 nonn,more,hard %O A185034 0,8 %A A185034 _Jason Kimberley_, Feb 29 2012