Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.

A257015

Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum.

Terms

    a(0) =311364a(1) =14776336a(2) =717382656a(3) =34828517376

External references