Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
A221329
Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Terms
- a(0) =1a(1) =17a(2) =119a(3) =866a(4) =6328a(5) =46211a(6) =337274a(7) =2460918a(8) =17953576a(9) =130970758a(10) =955393448a(11) =6969190236a(12) =50836821440a(13) =370827923908
External references
- oeis: A221329