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%I #6 Apr 04 2016 16:14:04
%S 0,24,1344,10440,43424,130592,320880,686384,1326848,2374152,3996832
%N Number of 4-turn queen's tours on an n X n board summed over all starting positions
%C Row 4 of A186965
%e Some solutions for 3X3
%e ..0..0..4....4..0..0....0..0..0....0..4..0....3..2..1....0..2..0....0..3..0
%e ..0..0..2....0..3..1....0..2..1....2..1..3....0..0..0....4..0..3....1..4..2
%e ..0..1..3....0..0..2....4..3..0....0..0..0....4..0..0....0..1..0....0..0..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 01 2011
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