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%I #3 Jan 12 2016 09:10:36
%S 7,127,1685,20676,220235,2093467,17892539,139164323,993947185,
%T 6572368601,40512935649,234192144667,1276154088792,6584891361478,
%U 32302298031855,151176059240006
%N Number of 6Xn binary arrays with row sums nondecreasing and columns lexicographically nondecreasing.
%C Row 6 of A267245.
%e Some solutions for n=4
%e ..0..0..0..1....0..0..0..1....0..0..1..1....0..0..0..1....0..0..0..1
%e ..0..0..1..0....1..1..1..0....1..1..0..0....0..0..1..1....0..0..1..0
%e ..0..1..0..0....1..1..1..0....1..1..0..0....0..1..1..0....0..1..1..0
%e ..1..1..0..0....0..1..1..1....0..1..0..1....1..1..1..0....1..1..0..0
%e ..0..1..1..0....1..0..1..1....1..1..0..0....1..1..0..1....0..1..1..1
%e ..1..1..0..0....0..1..1..1....0..1..1..0....1..1..1..1....1..1..1..1
%Y Cf. A267245.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 12 2016
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