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Number of nX(n+1) binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly decreasing order
0

%I #2 Mar 31 2012 12:35:50

%S 4,11,79,1629,87873,15691171,7892201343

%N Number of nX(n+1) binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly decreasing order

%C Superdiagonal 1 of A181274

%e M and M*Mtranspose (mod 2) for 3X4

%e ..0..0..0..1......1..0..0

%e ..0..1..0..0......0..1..1

%e ..0..1..1..0......0..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 10 2010