1689797632

Appears in sequences

• Number of (n+2) X (2+2) 0..1 arrays with every 3 X 3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=6A253865
• Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=1A253877