T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors.

A205281

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors.

Terms

    a(0) =256a(1) =3516a(2) =3184a(3) =49342a(4) =131918a(5) =39419a(6) =687900a(7) =5557912a(8) =4826836a(9) =484930a(10) =9599032a(11) =233119498a(12) =605359630a(13) =175224700a(14) =5968388a(15) =133932498a(16) =9769758666a(17) =75356390650a(18) =65106769738a(19) =6371258488a(20) =73466056a(21) =1868731400a(22) =409681200668

External references