Number of solutions to the rook problem on an n X n board having a certain symmetry group (see Robinson for details).
A000899
Number of solutions to the rook problem on an n X n board having a certain symmetry group (see Robinson for details).
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =9a(5) =70a(6) =571a(7) =4820a(8) =44676a(9) =450824a(10) =4980274a(11) =59834748a(12) =778230060a(13) =10896609768a(14) =163456629604
External references
- oeis: A000899