Number of ways to place 7 nonattacking bishops on an n X n toroidal board.
A178140
Number of ways to place 7 nonattacking bishops on an n X n toroidal board.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =5040a(7) =589824a(8) =6531840a(9) =98304000a(10) =548856000a(11) =3822059520a(12) =14841066240a(13) =67711795200a(14) =208702494000a(15) =726855843840
External references
- oeis: A178140