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%I #3 Dec 31 2015 07:06:40
%S 2,5,13,36,110,366,1688,5312,24921,101495,417118,1673507,6081357,
%T 22843019,72935735,238112928,734665224,2185350505
%N Number of nX7 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.
%C Column 7 of A266547.
%e Some solutions for n=6
%e ..0..0..0..0..1..1..1....0..0..0..1..1..1..1....0..0..0..0..1..1..1
%e ..0..1..1..1..0..0..0....0..0..1..0..0..1..1....0..0..0..1..0..1..1
%e ..1..0..0..1..0..0..0....0..1..0..1..1..0..0....0..0..1..0..1..0..0
%e ..1..0..1..0..0..0..0....1..0..1..0..0..0..0....0..0..1..1..0..0..0
%e ..1..1..0..0..0..0..0....1..1..0..0..0..0..0....1..1..0..0..0..0..0
%e ..1..1..0..0..0..0..0....1..1..0..0..0..0..0....1..1..0..0..0..0..0
%Y Cf. A266547.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 31 2015
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