T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8.
A252053
T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8.
Terms
- a(0) =1552a(1) =2440a(2) =2440a(3) =2812a(4) =2454a(5) =2812a(6) =3494a(7) =2552a(8) =2552a(9) =3494a(10) =5192a(11) =3030a(12) =2674a(13) =3030a(14) =5192a(15) =7642a(16) =6136a(17) =4390a(18) =4390a(19) =6136a(20) =7642a(21) =10084a(22) =10324a(23) =10114a(24) =6562a(25) =10114a(26) =10324a(27) =10084a(28) =15096a(29) =14924
External references
- oeis: A252053