Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out straight through or left turns.
A221746
Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =1a(1) =19a(2) =98a(3) =817a(4) =5567a(5) =41067a(6) =293058a(7) =2119375a(8) =15244204a(9) =109884658a(10) =791399401a(11) =5701648165a(12) =41072174493a(13) =295881007510
External references
- oeis: A221746