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

A297903

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

Terms

    a(0) =5a(1) =13a(2) =4a(3) =37a(4) =54a(5) =97a(6) =466a(7) =1105a(8) =3354a(9) =12282a(10) =37107a(11) =122676a(12) =416828a(13) =1349661a(14) =4501298a(15) =15041029a(16) =49602808a(17) =165300728a(18) =550279764a(19) =1824434359a(20) =6073061606a(21) =20198360858a(22) =67084559733a(23) =223165737677a(24) =742040901128

External references