4357084domain: NAppears in sequencesNumber of nX3 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=4A224199T(n,k)=Number of nXk 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=25A224204Number of 5Xn 0..3 arrays with rows unimodal and antidiagonals nondecreasing.at n=2A224207