Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A317156

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =5a(1) =21a(2) =29a(3) =105a(4) =379a(5) =1245a(6) =5458a(7) =25315a(8) =111407a(9) =527886a(10) =2563160a(11) =12170793a(12) =58396626a(13) =282895106a(14) =1362930990a(15) =6568303800a(16) =31746692725a(17) =153297619453a(18) =739913361896

External references