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Search: id:A005346
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| A005346 |
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Van der Waerden numbers.
(Formerly M2819)
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+0
3
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OFFSET
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1,2
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COMMENT
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Extension (2,6) found by researcher in SAT techniques. - Jonathan Braunhut (jonbraunhut(AT)gmail.com), Jul 29 2007
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REFERENCES
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J. E. Goodman and J. O'Rourke, editors, Handbook of Discrete and Computational Geometry, CRC Press, 1997, p. 159.
M. Lothaire, Combinatorics on Words. Addison-Wesley, Reading, MA, 1983, p. 49.
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
University of Cincinnati, Phd Student finds value for van der Waerden number
P. R. Herwig, M. J. H. Heule, P. M. van Lambalgen, H. van Maaren,A new method to construct lower bounds for Van de Waerden Numbers, Elec. J. Combinat. 14 (1) (2007), #R6.
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CROSSREFS
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Cf. A121894.
Sequence in context: A101880 A107894 A000834 this_sequence A129094 A059424 A002575
Adjacent sequences: A005343 A005344 A005345 this_sequence A005347 A005348 A005349
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KEYWORD
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nonn,hard
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AUTHOR
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njas
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EXTENSIONS
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a(6) from Jonathan Braunhut (jonbraunhut(AT)gmail.com), Jul 29 2007
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