Number of n X 4 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor.
A221083
Number of n X 4 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor.
Terms
- a(0) =4a(1) =169a(2) =6889a(3) =279841a(4) =11363641a(5) =461433361a(6) =18736955689a(7) =760832274049
External references
- oeis: A221083