Number of 3 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.
A221127
Number of 3 X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.
Terms
- a(0) =1a(1) =144a(2) =4872a(3) =179300a(4) =6405243a(5) =229006550a(6) =8187649472a(7) =292733110656
External references
- oeis: A221127