Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3 or 7 king-move adjacent elements, with upper left element zero.

A304771

Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 3 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =49a(2) =67a(3) =172a(4) =443a(5) =1094a(6) =2710a(7) =6861a(8) =17205a(9) =43090a(10) =108354a(11) =272151a(12) =683041a(13) =1715450a(14) =4308348a(15) =10818085a(16) =27165863a(17) =68220510a(18) =171312464a(19) =430193109a(20) =1080297705a(21) =2712821764a(22) =6812367886a(23) =17107084553a(24) =42958966889a(25) =107877614976a(26) =270899989904

External references