Number of ways to place 6 non-attacking ferses on an n X n board.
A201247
Number of ways to place 6 non-attacking ferses on an n X n board.
Terms
- a(0) =0a(1) =0a(2) =2a(3) =552a(4) =29412a(5) =527654a(6) =5196928a(7) =34528698a(8) =173951172a(9) =714042302a(10) =2503447216a(11) =7744201834a(12) =21635290132a(13) =55540293510a(14) =132752090192a(15) =298491879178a(16) =636559136340
External references
- oeis: A201247