138198204339domain: NAppears in sequencesNumber of n X n 0..n symmetric arrays with every row summing to floor(n^2/2).at n=6A213792Number of n X n 0..6 symmetric arrays with every row summing to 3*n.at n=5A213798Number of 6 X 6 0..n symmetric arrays with all rows summing to 3*n.at n=6A213804