Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.
A257269
Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.
Terms
- a(0) =13089924a(1) =380991361a(2) =4497848356a(3) =59496966400a(4) =498831438400
External references
- oeis: A257269