Number of nX4 binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.

A228656

Number of nX4 binary arrays with top left value 1 and no two ones adjacent horizontally, diagonally or antidiagonally.

Terms

    a(0) =3a(1) =14a(2) =78a(3) =416a(4) =2228a(5) =11912a(6) =63688a(7) =340480a(8) =1820208a(9) =9730784a(10) =52020448a(11) =278099456a(12) =1486709568a(13) =7947894912a(14) =42489154688a(15) =227145461760

External references