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

A186902

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

Terms

    a(0) =0a(1) =30a(2) =30a(3) =76a(4) =148a(5) =76a(6) =234a(7) =140a(8) =140a(9) =234a(10) =632a(11) =406a(12) =444a(13) =406a(14) =632a(15) =1832a(16) =1246a(17) =1692a(18) =1692a(19) =1246a(20) =1832a(21) =5182a(22) =3106a(23) =3948a(24) =5401a(25) =3948a(26) =3106a(27) =5182a(28) =14860a(29) =7240

External references