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

A252605

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

Terms

    a(0) =303a(1) =567a(2) =567a(3) =1218a(4) =1151a(5) =1218a(6) =2792a(7) =2784a(8) =2784a(9) =2792a(10) =6709a(11) =6978a(12) =7769a(13) =6978a(14) =6709a(15) =16123a(16) =18454a(17) =22623a(18) =22623a(19) =18454a(20) =16123a(21) =39372a(22) =49782a(23) =71730a(24) =81441a(25) =71730a(26) =49782a(27) =39372a(28) =97138a(29) =136336

External references