Number of n X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction.
A221477
Number of n X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction.
Terms
- a(0) =0a(1) =4a(2) =50a(3) =34751a(4) =48514602
External references
- oeis: A221477