Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.
A221137
Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.
Terms
- a(0) =16a(1) =9801a(2) =3485689a(3) =1539699121a(4) =619901126244
External references
- oeis: A221137