Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7.

A252318

Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 1 3 6 or 7.

Terms

    a(0) =15269a(1) =5029a(2) =18820a(3) =97191a(4) =505062a(5) =2670867a(6) =14105723a(7) =74390225a(8) =393421805a(9) =2079994660a(10) =10983499803a(11) =58012069543a(12) =306545373892

External references