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 A082972 #19 Oct 28 2015 10:02:01 %S A082972 82,410,1918,8657,38225,166322,716170,3059864,12994936,54924212, %T A082972 231235054,970347575,4060697955,16952812170,70629116910,293720506860, %U A082972 1219498444500,5055891511980,20933654593020,86571545598642 %N A082972 Incorrect version of A082971. %K A082972 dead %O A082972 6,1