%I #4 Jun 18 2016 10:24:21
%S 0,24,6720,5644800,16388749440,172145618789760,6709378999665162240,
%T 988932080423985278515200,559938250258499272920457420800,
%U 1233183626500802426354472388092518400,10663689261713618730124837637890877517004800
%N Number of nX(n+2) binary matrices with all rows unique and all columns unique
%F a(n) = A181230(n,n+2).
%Y Second subdiagonal of A181230.
%Y Cf. A088310, A181231, A181233.
%K nonn
%O 1,2
%A _R. H. Hardin_ Oct 10 2010
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