Number of ways to place n nonattacking bishops on an 2n x 2n toroidal board.

A189791

Number of ways to place n nonattacking bishops on an 2n x 2n toroidal board.

Terms

    a(0) =4a(1) =80a(2) =2688a(3) =132864a(4) =8647680a(5) =699678720a(6) =67711795200

External references