T(n,k) = Number of (n+3) X (k+3) 0..1 arrays with no 4 X 4 subblock diagonal sum not equal the antidiagonal sum.

A258957

T(n,k) = Number of (n+3) X (k+3) 0..1 arrays with no 4 X 4 subblock diagonal sum not equal the antidiagonal sum.

Terms

    a(0) =17920a(1) =80000a(2) =80000a(3) =357600a(4) =213920a(5) =357600a(6) =1645856a(7) =605904a(8) =605904a(9) =1645856a(10) =7668960a(11) =1724976a(12) =1188294a(13) =1724976a(14) =7668960a(15) =35887648a(16) =4964896a(17) =2292662a(18) =2292662a(19) =4964896a(20) =35887648a(21) =169347520a(22) =14867112a(23) =4268548a(24) =2864828a(25) =4268548

External references