Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.
A221938
Number of 2 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =1a(1) =17a(2) =105a(3) =783a(4) =5622a(5) =40608a(6) =293084a(7) =2115379a(8) =15268366a(9) =110202874a(10) =795416273a(11) =5741108247a(12) =41437835079a(13) =299087573904
External references
- oeis: A221938