Number of (n+2)X(1+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.
A257266
Number of (n+2)X(1+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) =9300a(1) =119716a(2) =1257600a(3) =13089924a(4) =121905264a(5) =1125468304a(6) =9711591328a(7) =83266873600a(8) =683489995584
External references
- oeis: A257266