Number of ways of placing kings with no more than 1 mutual attack on an n X n chessboard.
A143870
Number of ways of placing kings with no more than 1 mutual attack on an n X n chessboard.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =91a(4) =1462a(5) =38483a(6) =1755113a(7) =140404442a(8) =19400886875
External references
- oeis: A143870