1703178domain: NAppears in sequencesNumber of nX4 0..3 arrays with row sums nondecreasing and column sums unimodal.at n=2A224122T(n,k) is the number of n X k 0..3 arrays with row sums nondecreasing and column sums unimodal.at n=17A224123Number of 3Xn 0..3 arrays with row sums nondecreasing and column sums unimodal.at n=3A224125