Number of ways to place n^2 nonattacking kings on 2n X 2n chessboard.
A018807
Number of ways to place n^2 nonattacking kings on 2n X 2n chessboard.
Terms
- a(0) =1a(1) =4a(2) =79a(3) =3600a(4) =281571a(5) =32572756a(6) =5109144543
External references
- oeis: A018807