Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*5.
A214009
Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*5.
Terms
- a(0) =6a(1) =756a(2) =2663506a(3) =269462676001
External references
- oeis: A214009