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 A023641 #8 Sep 18 2018 12:53:25 %S A023641 1,1,2,3,2,13,4,9,12,40,7,38,10,83,29,38,15,373,25,71,54,204,26,259,31 %N A023641 Number of vertex-transitive graphs of valency 6 with n nodes. %D A023641 CRC Handbook of Combinatorial Designs, 1996, p. 649. %Y A023641 Column k=6 of A319367. %K A023641 nonn %O A023641 7,3 %A A023641 _N. J. A. Sloane_ %E A023641 a(27)-a(31) added by _Andrew Howroyd_, Sep 18 2018