Number of ways of placing non-attacking knights on an n X n chessboard symmetric under horizontal and vertical reflection.
A129898
Number of ways of placing non-attacking knights on an n X n chessboard symmetric under horizontal and vertical reflection.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =10a(4) =7a(5) =63a(6) =38a(7) =1252a(8) =456a(9) =42951a(10) =11051a(11) =2411116a(12) =461788a(13) =300699154a(14) =38535499a(15) =76231743090a(16) =6586274655
External references
- oeis: A129898