T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9.

A251652

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9.

Terms

    a(0) =376a(1) =448a(2) =448a(3) =738a(4) =908a(5) =738a(6) =1248a(7) =1928a(8) =1928a(9) =1248a(10) =2382a(11) =4008a(12) =4522a(13) =4008a(14) =2382a(15) =4140a(16) =10248a(17) =9918a(18) =9918a(19) =10248a(20) =4140a(21) =6978a(22) =22904a(23) =31022a(24) =24706a(25) =31022a(26) =22904a(27) =6978a(28) =13532a(29) =49956

External references