%I #7 Sep 12 2015 11:00:27
%S 0,0,6,96,600,1392,2156,10624,22410,62400,82280,210336,280540,495488,
%T 955950,1332736,1844976,2924640,3933456,6319200,7954170,10648000,
%U 14081980,19826304,25502500,31809856,41037354,52338272,63979916,84001200,98348740,123033600
%N Number of ways to place 3 nonattacking nightriders on an n X n toroidal board
%C A nightrider is a fairy chess piece that can move (proportionate to how a knight moves) in any direction.
%H V. Kotesovec, <a href="https://oeis.org/wiki/User:Vaclav_Kotesovec">Non-attacking chess pieces</a>, 4th edition p.195
%H Vaclav Kotesovec, <a href="/A196813/a196813.txt">Generating function and explicit formula</a>
%Y Cf. A173429, A196811
%K nonn
%O 1,3
%A _Vaclav Kotesovec_, Oct 06 2011