422488domain: NAppears in sequencesNumber of n X 6 0..2 arrays with rows unimodal and columns nondecreasing.at n=3A224188T(n,k) = Number of n X k 0..2 arrays with rows unimodal and columns nondecreasing.at n=39A224190Number of 4Xn 0..2 arrays with rows unimodal and columns nondecreasing.at n=5A224191