%I #5 Mar 30 2012 17:20:41
%S 1,2,4,6,12,14,28,36,52,58,116,124,242,266,302,356,664,695,1228,1311,
%T 1476,1589,2667,2766,3636,3898,4641,4924,7665,7764,11613,12678,13901,
%U 14730,16540,16953,24328,25688,27943,28868
%N Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among pairs.
%K nonn
%O 1,2
%A _Olivier GĂ©rard_