%I #4 Mar 30 2012 17:20:41
%S 0,0,0,1,3,12,22,48,75,148,194,335,443,630,804,1192,1401,1977,2345,
%T 2980,3525,4651,5222,6612,7588,9117,10314,12781,13879,16945,18903,
%U 21845,24217,28301,30496,35980,39410,44481,48147,55816,59277,68205
%N Quadruples of different integers from [ 2,n ] with no common factors between triples.
%K nonn
%O 2,5
%A _Olivier GĂ©rard_