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 A092458 #1 Jun 12 2004 03:00:00 %S A092458 1,2,4,21,55,151,447,1389,4502,15046,51505,179463,634086,2265014, %T A092458 8163125,29637903,108282989,397761507,1468063369,5441174511, %U A092458 20242989728,75566702558,282959337159,1062523000005,4000108867555,15095081362907,57088782570433 %N A092458 Erroneous version of A005217. %K A092458 dead %O A092458 1,2