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 A334695 #7 May 30 2020 19:32:11 %S A334695 1,12,51,170,415,854,1587 %N A334695 First column of A334700. %Y A334695 Cf. A334700. %K A334695 nonn,more %O A334695 1,2 %A A334695 _Scott R. Shannon_ and _N. J. A. Sloane_, May 30 2020