T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.

A252065

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 4.

Terms

    a(0) =125a(1) =200a(2) =200a(3) =383a(4) =346a(5) =383a(6) =843a(7) =817a(8) =817a(9) =843a(10) =1948a(11) =2081a(12) =2349a(13) =2081a(14) =1948a(15) =4569a(16) =5610a(17) =7463a(18) =7463a(19) =5610a(20) =4569a(21) =10836a(22) =15593a(23) =25220a(24) =30182a(25) =25220a(26) =15593a(27) =10836a(28) =25739a(29) =43618

External references