Number of n X 4 0..3 arrays with row sums 4 and column sums n.
A172740
Number of n X 4 0..3 arrays with row sums 4 and column sums n.
Terms
- a(0) =1a(1) =19a(2) =415a(3) =8515a(4) =194851a(5) =4705381a(6) =117546409a(7) =3017084995a(8) =79089365395
External references
- oeis: A172740