Number of ways to place n nonattacking zebras on an n X n chessboard.
A244284
Number of ways to place n nonattacking zebras on an n X n chessboard.
Terms
- a(0) =1a(1) =6a(2) =84a(3) =1168a(4) =20502a(5) =525796a(6) =18939708a(7) =802444170a(8) =38934305898
External references
- oeis: A244284