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 A171082 #14 Nov 09 2015 06:23:59 %S A171082 35,55,73,109,146,309 %N A171082 Van der Waerden numbers w(2;4,n). %H A171082 Tanbir Ahmed, <a href="http://users.encs.concordia.ca/~ta_ahmed/vdw.html">Van der Waerden numbers</a> %H A171082 Tanbir Ahmed, <a href="http://www.emis.de/journals/INTEGERS/papers/l71/l71.Abstract.html">On computation of exact van der Waerden numbers</a>, Integers: Electronic Journal of Combinatorial Number Theory, 11 (2011), A71. %Y A171082 Cf. A005346, A171081, A217235. %K A171082 nonn,hard,more %O A171082 4,1 %A A171082 _N. J. A. Sloane_, based on an email from _Tanbir Ahmed_, Sep 07 2010 and Feb 22 2012