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 0 2 5 6 or 7.

A252219

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 0 2 5 6 or 7.

Terms

    a(0) =874a(1) =1212a(2) =1212a(3) =1843a(4) =1078a(5) =1843a(6) =3147a(7) =1437a(8) =1437a(9) =3147a(10) =5011a(11) =2836a(12) =3303a(13) =2836a(14) =5011a(15) =8178a(16) =6674a(17) =10486a(18) =10486a(19) =6674a(20) =8178a(21) =14627a(22) =17478a(23) =35674a(24) =44776a(25) =35674a(26) =17478a(27) =14627a(28) =26610a(29) =47580

External references