Number of 3*n X 6 0..2 arrays with row sums 2 and column sums n.
A172671
Number of 3*n X 6 0..2 arrays with row sums 2 and column sums n.
Terms
- a(0) =90a(1) =202410a(2) =747558000
External references
- oeis: A172671
A172671
Number of 3*n X 6 0..2 arrays with row sums 2 and column sums n.