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 A056998 #12 Jan 08 2022 06:28:45 %S A056998 30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30, %T A056998 29,30,29,30,29,30,29,30,29,30,29,30,30,30,29,30,29,30,29,30,29,30,29, %U A056998 30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30,29,30 %N A056998 Erroneous version of A057348. %Y A056998 Cf. A057348. %K A056998 dead %O A056998 1,1