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 A124170 #5 Nov 22 2015 02:12:13 %S A124170 441,-445,433,-415,399,-402,378,-377,380,-468 %N A124170 Said to have been posted at the web site mturk.amazon.com as a puzzle. %C A124170 If anyone can supply more information about this sequence, please let me know. - _N. J. A. Sloane_ %K A124170 sign,unkn %O A124170 1,1 %A A124170 _N. J. A. Sloane_, Dec 05 2006