%I #5 Dec 12 2012 00:34:41
%S 0,1,6,68,1893
%N Number of distinct reducible characteristic polynomials of n X n real robust {0,1}-matrices.
%F a(n)=A127182(n)-A127183(n)
%Y Cf. A125587, A125593, A127182, A127183, A127186.
%K nonn
%O 1,3
%A _Artur Jasinski_ and Peter Pein (petsie(AT)dordos.net), Jan 07 2007