T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

A255783

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 1 and no row sum 0 and no column sum 0.

Terms

    a(0) =140a(1) =436a(2) =436a(3) =1512a(4) =1743a(5) =1512a(6) =5126a(7) =8672a(8) =8672a(9) =5126a(10) =17325a(11) =37281a(12) =58729a(13) =37281a(14) =17325a(15) =58707a(16) =161602a(17) =327340a(18) =327340a(19) =161602a(20) =58707a(21) =198635a(22) =726684a(23) =1968584a(24) =2413487a(25) =1968584a(26) =726684a(27) =198635a(28) =672183a(29) =3204754

External references