%I #15 Mar 12 2022 16:32:28
%S 1,2,5,6,8,6,10,112,104,80,40,36,2172,1414,984,384,240,70396,39400,
%T 22468,3696,1152,4457616,2246138,1060976,185932
%N Number of ways of placing A352241(n) nonattacking black-square queens on an n X n board.
%Y Cf. A000170, A352241.
%K nonn,more
%O 1,2
%A _Vaclav Kotesovec_, Mar 12 2022
%E a(20)-a(26) from _Martin Ehrenstein_, Mar 12 2022