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 A096119 #6 Dec 05 2013 19:56:53 %S A096119 1,2,4,11,48,362,5030,133924,6977521,719087781,147394353130, %T A096119 60255915944715,49197429536084417,80280819225274033666, %U A096119 261914438169525117048056 %N A096119 A050029(2^n + 1). %K A096119 nonn %O A096119 0,2 %A A096119 _Amarnath Murthy_, Jul 01 2004 %E A096119 Extended and description corrected by _Antti Karttunen_, Aug 25 2006