Number of ways to place 7 non-attacking ferses on an n X n board.
A201248
Number of ways to place 7 non-attacking ferses on an n X n board.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =216a(4) =38070a(5) =1314600a(6) =21191208a(7) =207830308a(8) =1442794332a(9) =7775083960a(10) =34530764200a(11) =131660992164a(12) =443702617356
External references
- oeis: A201248