a(n) = (n^2)!/(n!)^(n+1); number of ways of dividing n^2 labeled items into n unlabeled boxes of n items each.
A057599
a(n) = (n^2)!/(n!)^(n+1); number of ways of dividing n^2 labeled items into n unlabeled boxes of n items each.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =280a(4) =2627625
External references
- oeis: A057599