Number of ways to place 9 nonattacking kings on an n X n board.
A201771
Number of ways to place 9 nonattacking kings on an n X n board.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3600a(6) =2882737a(7) =229095676a(8) =6655170642a(9) =103395053720
External references
- oeis: A201771