Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.
A222016
Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =6a(1) =188a(2) =3875a(3) =86088a(4) =1892859a(5) =41636522a(6) =916164266a(7) =20156123913a(8) =443464985963
External references
- oeis: A222016