Number of 5*n X 2*n 0..1 arrays with row sums 2 and column sums 5.
A172591
Number of 5*n X 2*n 0..1 arrays with row sums 2 and column sums 5.
Terms
- a(0) =1a(1) =1172556
External references
- oeis: A172591
A172591
Number of 5*n X 2*n 0..1 arrays with row sums 2 and column sums 5.