2734683domain: NAppears in sequencesNumber of nX6 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=2A224202T(n,k)=Number of nXk 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=30A224204Number of 3Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=5A224205