Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.
A222017
Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =13a(1) =1363a(2) =86088a(3) =5925053a(4) =403317044a(5) =27460842224
External references
- oeis: A222017