Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 1 3 4 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 1 3 4 6 or 7.

A252240

Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 1 3 4 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 1 3 4 6 or 7.

Terms

    a(0) =13376a(1) =215424a(2) =2908368a(3) =11206944a(4) =193004352a(5) =2778727776a(6) =10519316352a(7) =185237247744

External references