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

A304851

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

Terms

    a(0) =5a(1) =17a(2) =15a(3) =38a(4) =65a(5) =127a(6) =264a(7) =626a(8) =1369a(9) =3086a(10) =7163a(11) =16749a(12) =38635a(13) =90513a(14) =214590a(15) =507478a(16) =1197982a(17) =2840209a(18) =6749471a(19) =16027442a(20) =38068309a(21) =90532903a(22) =215399198a(23) =512410252a(24) =1219160697a(25) =2901582764a(26) =6906265462a(27) =16437956844a(28) =39127612253

External references