Number of 3*n X n 0..7 arrays with row sums 7 and column sums 21.
A172936
Number of 3*n X n 0..7 arrays with row sums 7 and column sums 21.
Terms
- a(0) =1a(1) =18152a(2) =513799394688
External references
- oeis: A172936
A172936
Number of 3*n X n 0..7 arrays with row sums 7 and column sums 21.