Number of 7*n X 2*n 0..2 arrays with row sums 2 and column sums 7.
A172710
Number of 7*n X 2*n 0..2 arrays with row sums 2 and column sums 7.
Terms
- a(0) =393a(1) =492872166072
External references
- oeis: A172710
A172710
Number of 7*n X 2*n 0..2 arrays with row sums 2 and column sums 7.