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 A151686 #19 Feb 08 2022 14:01:38 %S A151686 2,70,47328,739818456,260629633975688,1999548813009227307620, %T A151686 332646010718562425157153825748, %U A151686 1191074182322287023188471842472410738322,91376667433034677542811906990191155440283816809920 %N A151686 Row sums of A082640. %K A151686 nonn,more %O A151686 1,1 %A A151686 _N. J. A. Sloane_, Jun 02 2009 %E A151686 Typo in name corrected by _Francisco Santos_, Nov 07 2016 %E A151686 a(7)-a(9) from _Stepan Orevkov_, Feb 08 2022