755265546000domain: NAppears in sequencesNumber of 2*n X n 0..2 arrays with row sums 3 and column sums 6.at n=4A172649Number of 2*n X n 0..2 arrays with row sums 7 and column sums 14.at n=4A172652Number of 5*n X 5 0..2 arrays with row sums 3 and column sums 3*n.at n=1A172699