Number of n X 9 0..3 arrays with row sums 9 and column sums n.
A172744
Number of n X 9 0..3 arrays with row sums 9 and column sums n.
Terms
- a(0) =1a(1) =3139a(2) =19546975a(3) =79089365395
External references
- oeis: A172744
A172744
Number of n X 9 0..3 arrays with row sums 9 and column sums n.