Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.

A256021

Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.

Terms

    a(0) =33a(1) =164a(2) =1689a(3) =23134a(4) =494704a(5) =17064206a(6) =904174706a(7) =74064844601

External references