T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without 2-loops or left turns.
A221768
T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor, without 2-loops or left turns.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =3a(8) =3a(9) =0a(10) =0a(11) =8a(12) =16a(13) =8a(14) =0a(15) =0a(16) =21a(17) =92a(18) =92a(19) =21a(20) =0a(21) =0a(22) =55a(23) =536a(24) =1042a(25) =536a(26) =55a(27) =0a(28) =0a(29) =144
External references
- oeis: A221768