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 1 3 4 6 or 7.

A252369

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 1 3 4 6 or 7.

Terms

    a(0) =130a(1) =152a(2) =152a(3) =282a(4) =276a(5) =282a(6) =658a(7) =834a(8) =834a(9) =658a(10) =1482a(11) =2338a(12) =3054a(13) =2338a(14) =1482a(15) =3188a(16) =6298a(17) =10450a(18) =10450a(19) =6298a(20) =3188a(21) =6954a(22) =17340a(23) =36078a(24) =45516a(25) =36078a(26) =17340a(27) =6954a(28) =15432a(29) =48034

External references