%I A005346 M2819
%S A005346 1,3,9,35,178,1132
%N A005346 Van der Waerden numbers.
%C A005346 Extension (2,6) found by researcher in SAT techniques. - Jonathan Braunhut 
               (jonbraunhut(AT)gmail.com), Jul 29 2007
%D A005346 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A005346 J. E. Goodman and J. O'Rourke, editors, Handbook of Discrete and Computational 
               Geometry, CRC Press, 1997, p. 159.
%D A005346 M. Lothaire, Combinatorics on Words. Addison-Wesley, Reading, MA, 1983, 
               p. 49.
%H A005346 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               vanderWaerdenNumber.html">Link to a section of The World of Mathematics.</
               a>
%H A005346 University of Cincinnati, <a href="http://www.cs.uc.edu/research/phd-student-finds-value-for-van-der-waerden-\
               number">Phd Student finds value for van der Waerden number </a>
%H A005346 P. R. Herwig, M. J. H. Heule, P. M. van Lambalgen, H. van Maaren, <a 
               href="http://www.combinatorics.org/Volume_14/Abstracts/v14i1r6.html">
               A new method to construct lower bounds for Van de Waerden Numbers</
               a>, Elec. J. Combinat. 14 (1) (2007), #R6.
%Y A005346 Cf. A121894.
%Y A005346 Sequence in context: A107894 A155858 A000834 this_sequence A129094 A059424 
               A002575
%Y A005346 Adjacent sequences: A005343 A005344 A005345 this_sequence A005347 A005348 
               A005349
%K A005346 nonn,hard
%O A005346 1,2
%A A005346 N. J. A. Sloane (njas(AT)research.att.com).
%E A005346 a(6) from Jonathan Braunhut (jonbraunhut(AT)gmail.com), Jul 29 2007