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 A334693 #9 May 24 2020 04:39:06 %S A334693 0,8,32,152,252,572,900 %N A334693 Column k=3 of A334691. %Y A334693 Cf. A334691, A334693. %K A334693 nonn,more %O A334693 1,2 %A A334693 _Scott R. Shannon_ and _N. J. A. Sloane_, May 18 2020