Number of ways of placing A352241(n) nonattacking black-square queens on an n X n board.

A352325

Number of ways of placing A352241(n) nonattacking black-square queens on an n X n board.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =6a(4) =8a(5) =6a(6) =10a(7) =112a(8) =104a(9) =80a(10) =40a(11) =36a(12) =2172a(13) =1414a(14) =984a(15) =384a(16) =240a(17) =70396a(18) =39400a(19) =22468a(20) =3696a(21) =1152a(22) =4457616a(23) =2246138a(24) =1060976a(25) =185932

External references