[Jm,n 0m ]
We conjecture that Vm,n is cohesive but not barycentric for 1 < n < m + √m and that it is not cohesive for n ≥ m + √m. We prove that it is cohesive for 1 < n < m + √m and not cohesive for n ≥ 2m and confirm the conjecture computationally for n < 2m ≤ 200. We also show that Um,n is barycentric.
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