Number of n X 2 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
A221226
Number of n X 2 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
Terms
- a(0) =1a(1) =19a(2) =137a(3) =1033a(4) =7877a(5) =60223a(6) =460713a(7) =3524857a(8) =26968225a(9) =206327811a(10) =1578551849a(11) =12076946305a(12) =92396113725a(13) =706885768959
External references
- oeis: A221226