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 A217236 #13 Nov 09 2015 10:56:01
%S A217236 55,71,75,79
%N A217236 Van der Waerden numbers w(j+2; t_0,t_1,...,t_{j-1}, 4, 5) with t_0 = t_1 = ... = t_{j-1} = 2.
%D A217236 T. C. Brown, Some new van der Waerden numbers (preliminary report), Notices American Math. Society, 21 (1974), A-432.
%D A217236 V. Chvatal, Some unknown van der Waerden numbers, Combinatorial Structures and their Applications (R. Guy et al., eds.), Gordon and Breach, New York, 1970.
%H A217236 T. Ahmed, <a href="http://www.emis.de/journals/INTEGERS/papers/j6/j6.Abstract.html">Some new van der Waerden numbers and some van der Waerden-type numbers</a>, Integers, 9 (2009), A06, 65-76.
%e A217236 w(2;4,5)=55, w(3; 2, 4, 5)=71, and so on...
%Y A217236 Cf. A217005, A217007, A217008, A217058, A217059, A217060, A217237.
%K A217236 nonn,hard,more
%O A217236 0,1
%A A217236 _Tanbir Ahmed_, Sep 28 2012