Number of 5X5 0..n arrays with rows in lexicographically nondecreasing order and columns in nonincreasing order.
A229777
Number of 5X5 0..n arrays with rows in lexicographically nondecreasing order and columns in nonincreasing order.
Terms
- a(0) =252a(1) =2179956a(2) =3062815568a(3) =843211336888
External references
- oeis: A229777