Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.
A258680
Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.
Terms
- a(0) =5744640a(1) =125888400a(2) =4096960560a(3) =133333061904
External references
- oeis: A258680