Number of ways to place k non-attacking bishops on an n x n toroidal chessboard, summed over all k >= 0.
A215943
Number of ways to place k non-attacking bishops on an n x n toroidal chessboard, summed over all k >= 0.
Terms
- a(0) =2a(1) =9a(2) =34a(3) =289a(4) =1546a(5) =19321a(6) =130922a(7) =2169729a(8) =17572114a(9) =364466281a(10) =3405357682a(11) =85143154849a(12) =896324308634
External references
- oeis: A215943