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

A256748

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

Terms

    a(0) =153a(1) =393a(2) =393a(3) =857a(4) =570a(5) =857a(6) =2065a(7) =1564a(8) =1564a(9) =2065a(10) =5255a(11) =2512a(12) =2992a(13) =2512a(14) =5255a(15) =12914a(16) =6352a(17) =3752a(18) =3752a(19) =6352a(20) =12914a(21) =31032a(22) =12280a(23) =9112a(24) =5888a(25) =9112a(26) =12280a(27) =31032a(28) =75634a(29) =28816

External references