Number of 3 X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor.
A221089
Number of 3 X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor.
Terms
- a(0) =0a(1) =16a(2) =270a(3) =6889a(4) =154440a(5) =3538161a(6) =80655102a(7) =1840667409a(8) =41995876248a(9) =958215843225
External references
- oeis: A221089