Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.
A221822
Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without consecutive moves in the same direction.
Terms
- a(0) =6a(1) =252a(2) =6711a(3) =190756a(4) =5374720a(5) =151592441a(6) =4274867564a(7) =120554575328
External references
- oeis: A221822