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%I #4 Mar 31 2012 12:36:12
%S 1,3,16,124,1308,17443,282349,5396178,119324602,3005520274,
%T 85152637884,2685936442822,93514176139534
%N Number of (2*n)Xn binary arrays with rows in nonincreasing order, 2 ones in every column and no more than 3 ones in any row
%C Row 2 of A188416
%e All solutions for 4X2
%e ..1..1....1..1....1..0
%e ..1..0....1..1....1..0
%e ..0..1....0..0....0..1
%e ..0..0....0..0....0..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Mar 30 2011