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A015698 Number of 5-tuples of different integers from [ 1,n ] with no common factors among pairs. 2

%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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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)