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

A255027

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

Terms

    a(0) =26a(1) =54a(2) =54a(3) =117a(4) =134a(5) =117a(6) =269a(7) =405a(8) =405a(9) =269a(10) =601a(11) =1121a(12) =1489a(13) =1121a(14) =601a(15) =1306a(16) =3015a(17) =5077a(18) =5077a(19) =3015a(20) =1306a(21) =2853a(22) =8338a(23) =17447a(24) =21854a(25) =17447a(26) =8338a(27) =2853a(28) =6308a(29) =23077

External references