Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*3.
A214007
Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*3.
Terms
- a(0) =4a(1) =160a(2) =85639a(3) =641631566
External references
- oeis: A214007