construct/mc van der waerden
construct/mc van der waerden: a task in MathConstructOptimize-Envs-harbor (Harbor dataset). Colour the integers 1, 2, ..., 500 with 2 colours (numbered 0..1) so that there is no monochromatic arithmetic progression of length 6: no a = 1, d = 1 with a + 5 d <= 500 such that a, a+d, ..., a+5 d all…
The task
Colour the integers 1, 2, ..., 500 with 2 colours (numbered 0..1) so that there is no monochromatic arithmetic progression of length 6: no a >= 1, d >= 1 with a + 5*d <= 500 such that a, a+d, ..., a+5*d all have the same colour.