Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2.
A221387
Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2.
Terms
- a(0) =0a(1) =918a(2) =284702a(3) =86673898a(4) =25415184702
External references
- oeis: A221387