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

A255091

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

Terms

    a(0) =108a(1) =265a(2) =265a(3) =623a(4) =522a(5) =623a(6) =1483a(7) =964a(8) =964a(9) =1483a(10) =3658a(11) =2005a(12) =1824a(13) =2005a(14) =3658a(15) =8830a(16) =4405a(17) =3696a(18) =3696a(19) =4405a(20) =8830a(21) =21442a(22) =9989a(23) =8631a(24) =9484a(25) =8631a(26) =9989a(27) =21442a(28) =51939a(29) =22601

External references