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 A131510 #16 May 08 2019 12:01:17 %S A131510 1,2,5,22,32,62,91,183,188,190,196,258,276,330,671,710,1130,1210,1570, %T A131510 2644,2998 %N A131510 Erroneous version of A079342. %K A131510 dead %O A131510 1,2