Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
A304593
Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =86a(2) =456a(3) =3789a(4) =28251a(5) =211833a(6) =1593375a(7) =12018566a(8) =90361561a(9) =680306497a(10) =5121406961a(11) =38546762369a(12) =290155743216
External references
- oeis: A304593