790425domain: NAppears in sequencesNumber of n X n 0..4 matrices with all row and column sums equal.at n=4A067212T(n,k) is the number of n X n 0..k arrays with row and column sums equal.at n=40A202784Number of 4 X 4 0..n arrays with row and column sums equal.at n=4A202786