Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, with no occupancy greater than 2.
A221268
Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, with no occupancy greater than 2.
Terms
- a(0) =17a(1) =1073a(2) =71977a(3) =5007745a(4) =355645325a(5) =25512853201
External references
- oeis: A221268