152918517domain: NAppears in sequencesNumber of n X 3 0..3 arrays with rows, diagonals and antidiagonals unimodal.at n=4A223871T(n,k)=Number of nXk 0..3 arrays with rows, diagonals and antidiagonals unimodal.at n=25A223876Number of 5Xn 0..3 arrays with rows, diagonals and antidiagonals unimodal.at n=2A223879