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%I #2 Oct 02 2013 15:47:16
%S 2,87178291200,6227020800,265252859812191058636308480000000,
%T 815915283247897734345611269596115894272000000000,
%U 258623241511168180642964355153611979969197632389120000000000
%N Smallest factorial containing exactly n 2's.
%e a(2)=87178291200 so 87178291200 is the smallest factorial containing exactly two 2's.
%K base,nonn
%O 1,1
%A _Shyam Sunder Gupta_, Jul 30 2002