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 A186728 #13 May 01 2014 02:39:59 %S A186728 1,1,1,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1, %T A186728 2,1,4,1,14,1,156,1,4338,1,266363,1,20807689,1 %N A186728 Number of connected regular graphs with n nodes and girth at least 8. %D A186728 M. Meringer, Fast Generation of Regular Graphs and Construction of Cages. Journal of Graph Theory, 30 (1999), 137-146. %H A186728 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/C_girth_ge_8">Connected regular graphs with girth at least 8</a> %H A186728 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/C_k-reg_girth_ge_g_index">Index of sequences counting connected k-regular simple graphs with girth at least g</a> %H A186728 M. Meringer, <a href="http://www.mathe2.uni-bayreuth.de/markus/reggraphs.html">Tables of Regular Graphs</a> %F A186728 a(n) = sum of the n-th row of A186718. %Y A186728 Connected regular graphs of any degree with girth at least g: A005177 (g=3), A186724 (g=4), A186725 (g=5), A186726 (g=6), A186727 (g=7), this sequence (g=8), A186729 (g=9). %Y A186728 Connected k-regular simple graphs with girth at least 8: this sequence (any k), A186718 (triangle); specific k: A185118 (k=2), A014376 (k=3). %K A186728 nonn,hard,more %O A186728 0,31 %A A186728 _Jason Kimberley_, Nov 25 2011