Number of 4X4 0..n arrays with rows and columns in lexicographically nondecreasing order.
A229797
Number of 4X4 0..n arrays with rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =650a(1) =250841a(2) =21907055a(3) =733861607a(4) =13111482259a(5) =150943642765
External references
- oeis: A229797