T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

A185487

T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant.

Terms

    a(0) =0a(1) =30a(2) =30a(3) =76a(4) =148a(5) =76a(6) =234a(7) =684a(8) =684a(9) =234a(10) =632a(11) =3262a(12) =4740a(13) =3262a(14) =632a(15) =1832a(16) =15402a(17) =35672a(18) =35672a(19) =15402a(20) =1832a(21) =5182a(22) =73094a(23) =260172a(24) =431655a(25) =260172a(26) =73094a(27) =5182a(28) =14860a(29) =346356

External references