Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i.
A214005
Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i.
Terms
- a(0) =2a(1) =12a(2) =271a(3) =24950a(4) =9800058a(5) =16942485560
External references
- oeis: A214005