27871870domain: NAppears in sequencesNumber of n X n 0..3 arrays with the row and column sums nondecreasing.at n=3A202575Number of nX4 0..3 arrays with the row and column sums nondecreasing.at n=3A202578T(n,k)=Number of nXk 0..3 arrays with the row and column sums nondecreasing.at n=24A202581