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%I #3 Dec 29 2015 09:53:29
%S 8,92,1170,16585,251381,3889553,59155748,861030491,11809616668,
%T 151566391972,1816912772913,20365495779036
%N Number of nX7 binary arrays with rows and columns lexicographically nondecreasing and column sums nondecreasing.
%C Column 7 of A266428.
%e Some solutions for n=4
%e ..0..0..0..0..0..0..1....0..0..0..0..0..0..0....0..0..0..0..0..0..0
%e ..0..0..0..0..0..1..1....0..0..1..1..1..1..1....0..0..0..0..0..1..1
%e ..0..1..1..1..1..0..1....0..1..0..0..0..1..1....0..0..0..0..0..1..1
%e ..1..0..0..1..1..1..1....1..1..1..1..1..0..0....0..0..0..0..1..0..0
%Y Cf. A266428.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 29 2015
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