Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7.

A252453

Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 4 6 or 7.

Terms

    a(0) =747a(1) =2643a(2) =11334a(3) =48170a(4) =203320a(5) =863351a(6) =3675259a(7) =15672575a(8) =66857788a(9) =285055325a(10) =1215600193a(11) =5185581482a(12) =22120635088a(13) =94356110010a(14) =402488550644

External references