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 A214325 #9 Jul 25 2021 12:13:36 %S A214325 0,6,7,15,33,47,48,133,469,1859,2957,15885,113697,403185 %N A214325 Where records occur in A214323. %Y A214325 Cf. A214551, A214323, A214324. %K A214325 nonn,more %O A214325 1,2 %A A214325 _N. J. A. Sloane_, Jul 23 2012 %E A214325 a(12) from _Reinhard Zumkeller_, Jul 24 2012 %E A214325 a(13)-a(14) from _Jinyuan Wang_, Jul 25 2021