Number of n X 5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops or left turns.
A221784
Number of n X 5 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops or left turns.
Terms
- a(0) =0a(1) =8a(2) =24a(3) =173a(4) =744a(5) =4131a(6) =19998a(7) =104035a(8) =520922a(9) =2661269a(10) =13452654a(11) =68382023a(12) =346582048a(13) =1759291193a(14) =8923150696a(15) =45277608445
External references
- oeis: A221784