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%I #4 Oct 12 2012 14:40:20
%S 1,80,9520,1786400,493292800,189065676800,96179539456000,
%T 62739188255744000,51070871935283200000,50753775178192486400000,
%U 60478693661116393062400000,85121458839683971088384000000
%N Fifth column (m=6) of array A091752 ((-1,2)Stirling2).
%F a(n)= A091752(n, 6), n>=3.
%F a(n)= ((3*(n-2))!/((3^(n-2))*(n-2)!))*(9*n^2-27*n+12)/4! = A052502(n-2)*(9*n^2-27*n+12)/4!, n>=3.
%K nonn,easy
%O 3,2
%A _Wolfdieter Lang_, Feb 27 2004
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