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 A003694 #4 May 08 2000 03:00:00 %S A003694 14,23,28,34,42,50,59,66,72,79,86,96,103,110,116,125,137,145,157,168, %T A003694 181,191,207,215,225,231,238,242 %N A003694 Incomplete version of A000053. %K A003694 dead %O A003694 1,1