Number of n X n 0..n symmetric arrays with every row summing to floor(n^2/2).
A213792
Number of n X n 0..n symmetric arrays with every row summing to floor(n^2/2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =29a(4) =3249a(5) =4843626a(6) =138198204339
External references
- oeis: A213792