108625domain: NAppears in sequencesNumber of nX4 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=2A224200T(n,k)=Number of nXk 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=17A224204Number of 3Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=3A224205