Number of ways to place n nonattacking queens on a 2n X 2n board.
A348130
Number of ways to place n nonattacking queens on a 2n X 2n board.
Terms
- a(0) =1a(1) =4a(2) =44a(3) =1024a(4) =34568a(5) =1535440a(6) =84871680a(7) =5613017128a(8) =432539436508
External references
- oeis: A348130