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

A252384

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

Terms

    a(0) =578a(1) =897a(2) =540a(3) =1359a(4) =555a(5) =588a(6) =1966a(7) =647a(8) =529a(9) =651a(10) =3020a(11) =771a(12) =632a(13) =570a(14) =785a(15) =4682a(16) =1067a(17) =663a(18) =616a(19) =637a(20) =904a(21) =7109a(22) =1496a(23) =963a(24) =744a(25) =799a(26) =764a(27) =1051a(28) =10880a(29) =1928

External references