Number of triangular nXnXn arrays of occupancy after each element moves to some neighbor and with no occupancy greater than 4.

A217242

Number of triangular nXnXn arrays of occupancy after each element moves to some neighbor and with no occupancy greater than 4.

Terms

    a(0) =0a(1) =7a(2) =182a(3) =22484a(4) =10146841a(5) =17541907856

External references