Number of 4 X n arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops.
A221354
Number of 4 X n arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops.
Terms
- a(0) =0a(1) =38a(2) =6893a(3) =938070a(4) =103485930a(5) =11446121074
External references
- oeis: A221354