2086196domain: NAppears in sequencesNumber of nX4 0..3 arrays with rows unimodal and columns nondecreasing.at n=4A223983T(n,k)=Number of nXk 0..3 arrays with rows unimodal and columns nondecreasing.at n=32A223987Number of 5Xn 0..3 arrays with rows unimodal and columns nondecreasing.at n=3A223990