%I #4 Mar 30 2012 17:20:41
%S 0,0,0,1,5,15,34,69,121,205,314,479,679,961,1290,1745,2239,2919,3650,
%T 4599,5619,6949,8290,10057,11861,14105,16418,19343,22165,25819,29424,
%U 33799,38199,43631,48780,55325,61649,69199,76632,85771,94235,104895
%N Quadruples of different integers from [ 2,n ] with no global factor.
%K nonn
%O 2,5
%A _Olivier GĂ©rard_