%I
%S 1,5,81,3217,252493,33313408,6720357785,1943505834628,768799728447441
%N Number of (4*n) X n binary arrays with rows in nonincreasing order, four 1's in every column and no more than three 1's in any row.
%C Row 4 of A188416.
%e All solutions for 8 X 2
%e ..1..0....1..1....1..1....1..1....1..1
%e ..1..0....1..1....1..1....1..0....1..1
%e ..1..0....1..1....1..1....1..0....1..0
%e ..1..0....1..1....1..0....1..0....1..0
%e ..0..1....0..0....0..1....0..1....0..1
%e ..0..1....0..0....0..0....0..1....0..1
%e ..0..1....0..0....0..0....0..1....0..0
%e ..0..1....0..0....0..0....0..0....0..0
%Y Cf. A188416.
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 30 2011
