%I #6 Apr 09 2014 10:13:01
%S 1,7,181,11584,1434176,311510016,106474687488,54515039993856,
%T 39741464155521024,39789248881360896000,52911705535251480576000,
%U 91431427164914558435328000,200764942140996806158319616000
%N n!^3 *sum{k=1 to n} mu(k)/k^3, where mu(k) is the Moebius function A008683.
%K nonn
%O 1,2
%A _Leroy Quet_, Feb 27 2002
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