Number of n X 2 arrays of occupancy after each element stays put or moves to some king-move neighbor, without consecutive moves in the same direction.
A221687
Number of n X 2 arrays of occupancy after each element stays put or moves to some king-move neighbor, without consecutive moves in the same direction.
Terms
- a(0) =3a(1) =35a(2) =396a(3) =4429a(4) =49387a(5) =550264a(6) =6129659a(7) =68277335a(8) =760519092a(9) =8471140593a(10) =94356794511
External references
- oeis: A221687