Triangle T(n,k) of number of ways of arranging q nonattacking semi-queens on an n X n toroidal board, where 0 <= k <= n.
A342372
Triangle T(n,k) of number of ways of arranging q nonattacking semi-queens on an n X n toroidal board, where 0 <= k <= n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =0a(6) =1a(7) =9a(8) =9a(9) =3a(10) =1a(11) =16a(12) =48a(13) =32a(14) =0a(15) =1a(16) =25a(17) =150a(18) =250a(19) =75a(20) =15a(21) =1a(22) =36a(23) =360a(24) =1200a(25) =1224a(26) =288a(27) =0a(28) =1a(29) =49
External references
- oeis: A342372