3322756326domain: NAppears in sequencesNumber of n X n 0..3 arrays with rows unimodal and columns nondecreasing.at n=5A223981Number of nX6 0..3 arrays with rows unimodal and columns nondecreasing.at n=5A223985Number of 6Xn 0..3 arrays with rows unimodal and columns nondecreasing.at n=5A223991