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%I #2 Mar 31 2012 12:35:50
%S 16,188,6060,507052,115127924,76961864884
%N Number of nX(n+3) binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly decreasing order
%C Superdiagonal 3 of A181274
%e M and M*Mtranspose (mod 2) for 3X6
%e ..0..1..0..1..0..1......1..1..1
%e ..0..1..1..0..1..0......1..1..0
%e ..1..0..1..1..1..0......1..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 10 2010