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%I #2 Feb 20 2005 03:00:00
%S 1,1,1,1,1,60,1,5040,10080,15120,1,19958400,1,8648640,1816214400,
%T 1307674368000,1,88921857024000,1,5068545850368000,1689515283456000,
%U 14079294028800,1,12926008369442488320000,1077167364120207360000
%N Erroneous version of A056218.
%K dead
%O 1,6