Number of non-equivalent ways to place n non-attacking ferses on an n X n board.
A278687
Number of non-equivalent ways to place n non-attacking ferses on an n X n board.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =92a(4) =2102a(5) =66201a(6) =2651890a(7) =126928146a(8) =7060794663a(9) =447024321962
External references
- oeis: A278687