%I #4 Mar 30 2012 18:50:29
%S 6,10,26,30,51,66,70,78,102,122,130,154,165,174,177,182,190,210,222,
%T 238,246,266,273,282,285,291,310,318,330,345,357,362,366,370,390,399,
%U 406,418,426,429,438,455,462,483,510,518,530,533,534,546,555,561,570
%N Squarefree numbers occurring more than once in A076734.
%C A077618(a(n))>1;
%C Primorials are a subsequence, see A077622.
%Y Cf. A077619, A077620.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Nov 12 2002