Number of ways to place 6 nonattacking knights on an n X n toroidal board.
A172533
Number of ways to place 6 nonattacking knights on an n X n toroidal board.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =56a(4) =0a(5) =54972a(6) =764596a(7) =8972896a(8) =62560728a(9) =322246800a(10) =1323868260a(11) =4595943336a(12) =14000143196a(13) =38413461800a(14) =96746410800a(15) =226834407552a(16) =500492572112
External references
- oeis: A172533