354003288064domain: NAppears in sequencesNumber of n X n 0..3 arrays with corresponding row and column sums equal.at n=4A229867T(n,k)=Number of n X n 0..k arrays with corresponding row and column sums equal.at n=25A229870Number of 5X5 0..n arrays with corresponding row and column sums equal.at n=2A229872