%I #5 Mar 31 2012 21:03:15
%S 1,1,1,2,1,2,3,5,1,3,23,30,40,4,132,218,5,1859,29517,1,2,9,18,51,470,
%T 7170,387830,1,6,1215,121487,89997968
%N Counting sequence for classification of nonattacking queens on n X n toroidal board.
%Y See comments and references for A054500.
%Y Cf. A054500, A054501, A053994, A007705, A006841.
%K nonn,nice,hard
%O 1,4
%A _Matthias Engelhardt_
%E More terms from _Matthias Engelhardt_, Jan 11 2001