Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
A221227
Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
Terms
- a(0) =2a(1) =137a(2) =2710a(3) =65453a(4) =1516877a(5) =35691850a(6) =840634931a(7) =19825968683a(8) =467700681922
External references
- oeis: A221227