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%I #14 Nov 09 2015 06:23:59
%S 35,55,73,109,146,309
%N Van der Waerden numbers w(2;4,n).
%H Tanbir Ahmed, <a href="http://users.encs.concordia.ca/~ta_ahmed/vdw.html">Van der Waerden numbers</a>
%H 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 Cf. A005346, A171081, A217235.
%K nonn,hard,more
%O 4,1
%A _N. J. A. Sloane_, based on an email from _Tanbir Ahmed_, Sep 07 2010 and Feb 22 2012
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