Number of n X 3 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
A221323
Number of n X 3 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Terms
- a(0) =7a(1) =119a(2) =2008a(3) =33873a(4) =571358a(5) =9637322a(6) =162555929a(7) =2741882383a(8) =46248186229a(9) =780082534460
External references
- oeis: A221323