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Number of 5-tuples of different integers from [ 2,n ] with no global factor.
0

%I #5 Mar 30 2012 17:20:41

%S 0,0,0,0,1,6,21,56,125,251,456,786,1266,1980,2946,4311,6056,8436,

%T 11370,15231,19866,25851,32801,41655,51786,64366,78601,96151,115495,

%U 139246,165286,196541,230681,271585,315256,367616,423461,489011

%N Number of 5-tuples of different integers from [ 2,n ] with no global factor.

%K nonn

%O 2,6

%A _Olivier GĂ©rard_