Number of nX4 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
A221228
Number of nX4 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2.
Terms
- a(0) =4a(1) =1033a(2) =65453a(3) =4581973a(4) =322610120a(5) =23035350108
External references
- oeis: A221228