Number of triangular nXnXn arrays of occupancy after each element either stays or moves to some neighbor and with no occupancy greater than 2.
A217504
Number of triangular nXnXn arrays of occupancy after each element either stays or moves to some neighbor and with no occupancy greater than 2.
Terms
- a(0) =1a(1) =7a(2) =138a(3) =8353a(4) =1563486a(5) =896267399
External references
- oeis: A217504