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

A255082

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

Terms

    a(0) =208a(1) =676a(2) =676a(3) =2444a(4) =2704a(5) =2444a(6) =8836a(7) =14161a(8) =14161a(9) =8836a(10) =31960a(11) =66049a(12) =103929a(13) =66049a(14) =31960a(15) =115600a(16) =309136a(17) =630436a(18) =630436a(19) =309136a(20) =115600a(21) =418200a(22) =1485961a(23) =4055975a(24) =4906225a(25) =4055975a(26) =1485961a(27) =418200a(28) =1512900a(29) =7070281

External references