Number of n X 3 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.
A221121
Number of n X 3 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor.
Terms
- a(0) =8a(1) =200a(2) =4872a(3) =118472a(4) =2880520a(5) =70036168a(6) =1702839048a(7) =41402332360
External references
- oeis: A221121