311367domain: NAppears in sequencesNumber of nX5 0..2 arrays with rows unimodal and antidiagonals nondecreasing.at n=3A224371T(n,k)=Number of nXk 0..2 arrays with rows unimodal and antidiagonals nondecreasing.at n=31A224374Number of 4 X n 0..2 arrays with rows unimodal and antidiagonals nondecreasing.at n=4A224376