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 A023643 #9 Sep 18 2018 13:45:09 %S A023643 1,1,1,7,3,6,12,48,10,54,14,149,48,79,30,1064,57,204,128,748,73,935,91 %N A023643 Number of vertex-transitive graphs of valency 8 with n nodes. %D A023643 CRC Handbook of Combinatorial Designs, 1996, p. 649. %Y A023643 Column k=8 of A319367. %K A023643 nonn,more %O A023643 9,4 %A A023643 _N. J. A. Sloane_ %E A023643 a(27)-a(31) added by _Andrew Howroyd_, Sep 18 2018