30189264889domain: NAppears in sequencesNumber of n X 10 0..2 arrays with row sums 10 and column sums n.at n=3A172637Number of n X 4 0..2 arrays with row sums 4 and column sums n.at n=9A172642Number of 5*n X 2*n 0..2 arrays with row sums 4 and column sums 10.at n=1A172694