Number of n X 4 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
A221324
Number of n X 4 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Terms
- a(0) =17a(1) =866a(2) =46105a(3) =2460824a(4) =131347807a(5) =7010554450a(6) =374176705928
External references
- oeis: A221324