Number of ways of placing kings with no more than 2 mutual attacks on an n X n chessboard.
A143875
Number of ways of placing kings with no more than 2 mutual attacks on an n X n chessboard.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =155a(4) =3280a(5) =124511a(6) =7623993a(7) =795923016a(8) =140176308483
External references
- oeis: A143875