%I #10 Mar 30 2012 17:20:41
%S 0,0,0,0,0,0,2,3,6,6,32,33,105,114,128,157,385,400,831,886,1001,1076,
%T 2004,2074,2817,3022,3655,3880,6379,6449,10020,10978,12063,12791,
%U 14417,14767,21746,22977,25038,25860,36660,37110,51088,53449,56199
%N Number of 5-tuples of different integers from [ 1,n ] with no common factors among pairs.
%Y Column 5 of triangle A186974. Partial sums of A186976.
%K nonn
%O 1,7
%A _Olivier GĂ©rard_
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