A171082 Van der Waerden numbers w(2;4,n).

35, 55, 73, 109, 146, 309

Offset: 4

Author

N. J. A. Sloane, based on an email from Tanbir Ahmed, Sep 07 2010 and Feb 22 2012

Keywords

• nonn
• hard
• more

Links

• Tanbir Ahmed, Van der Waerden numbers
• Tanbir Ahmed, On computation of exact van der Waerden numbers, Integers: Electronic Journal of Combinatorial Number Theory, 11 (2011), A71.

Crossrefs

Cf. A005346, A171081, A217235.