%I #6 Apr 04 2016 16:14:04
%S 0,0,36816,1384152,9151912,30203792,69641344,129718288
%N Number of 7-step one or two collinear space at a time queen's tours on an n X n board summed over all starting positions
%C Row 7 of A187027
%e Some solutions for 4X4
%e ..3..0..2..0....0..0..6..0....0..3..4..0....0..7..0..0....0..0..0..0
%e ..0..7..0..1....0..2..0..7....2..5..6..0....6..0..5..4....0..2..0..0
%e ..4..6..5..0....0..1..5..0....1..7..0..0....2..1..0..0....0..1..6..0
%e ..0..0..0..0....0..4..0..3....0..0..0..0....0..3..0..0....4..3..5..7
%K nonn
%O 1,3
%A _R. H. Hardin_ Mar 02 2011
|