Number of ways to place n nonattacking ferses on an n X n board.
A201861
Number of ways to place n nonattacking ferses on an n X n board.
Terms
- a(0) =1a(1) =4a(2) =38a(3) =661a(4) =16286a(5) =527654a(6) =21191208a(7) =1015335608a(8) =56484795166
External references
- oeis: A201861