Number of ways to place k non-attacking kings on an n X n cylindrical chessboard, summed over all k >= 0.
A212269
Number of ways to place k non-attacking kings on an n X n cylindrical chessboard, summed over all k >= 0.
Terms
- a(0) =2a(1) =5a(2) =19a(3) =205a(4) =3011a(5) =92875a(6) =4763459a(7) =459630701a(8) =78223965193
External references
- oeis: A212269