Number of n X 3 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns.
A221601
Number of n X 3 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out left turns.
Terms
- a(0) =2a(1) =140a(2) =4656a(3) =154886a(4) =5151998a(5) =171049120a(6) =5677948938a(7) =188450054011
External references
- oeis: A221601