Number of ways to place n+1 queens and a pawn on an n X n board so that no two queens attack each other.
A103330
Number of ways to place n+1 queens and a pawn on an n X n board so that no two queens attack each other.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =16a(6) =20a(7) =128a(8) =396a(9) =2288a(10) =11152a(11) =65712a(12) =437848a(13) =3118664a(14) =23387448a(15) =183463680a(16) =1474699536a(17) =12485203304a(18) =110956890352
External references
- oeis: A103330