Number of n X 3 arrays of occupancy after each element stays put or moves to some king-move neighbor.
A221224
Number of n X 3 arrays of occupancy after each element stays put or moves to some king-move neighbor.
Terms
- a(0) =8a(1) =400a(2) =18768a(3) =867776a(4) =39983152a(5) =1840507104a(6) =84698310960
External references
- oeis: A221224