Nonattacking queens on a 2n+1 X 2n+1 toroidal board, solutions which differ only by rotation, reflection or torus shift count only once.
A053994
Nonattacking queens on a 2n+1 X 2n+1 toroidal board, solutions which differ only by rotation, reflection or torus shift count only once.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =2a(6) =11a(7) =0a(8) =97a(9) =354a(10) =0a(11) =31381a(12) =395551a(13) =0a(14) =90120677
External references
- oeis: A053994