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

A252269

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

Terms

    a(0) =103a(1) =130a(2) =130a(3) =258a(4) =272a(5) =258a(6) =598a(7) =822a(8) =822a(9) =598a(10) =1342a(11) =2290a(12) =3016a(13) =2290a(14) =1342a(15) =2900a(16) =6164a(17) =10302a(18) =10302a(19) =6164a(20) =2900a(21) =6330a(22) =17008a(23) =35486a(24) =44612a(25) =35486a(26) =17008a(27) =6330a(28) =14024a(29) =47094

External references