Number of nonequivalent ways to place k>=0 nonattacking kings on an n X n board.
A275869
Number of nonequivalent ways to place k>=0 nonattacking kings on an n X n board.
Terms
- a(0) =2a(1) =2a(2) =11a(3) =51a(4) =922a(5) =25618a(6) =1597350a(7) =169413040a(8) =33716225195
External references
- oeis: A275869