Number of 3Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor.
A221247
Number of 3Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor.
Terms
- a(0) =0a(1) =64a(2) =1056a(3) =45369a(4) =1337130a(5) =44315649a(6) =1404725868a(7) =45215769600
External references
- oeis: A221247