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%I #3 Dec 18 2015 18:17:26
%S 2,2,6,111,2607,256746,63961223,49499166213
%N Number of n X n binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order
%C Diagonal of A181266
%e M and M*Mtranspose (mod 2) for 4X4
%e ..0..1..1..0......0..0..1..1
%e ..1..0..0..0......0..1..1..1
%e ..1..0..1..0......1..1..0..0
%e ..1..0..1..1......1..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 10 2010
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