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%I #3 Oct 01 2013 17:58:01
%S 4,13,45,212,1205,7754,54033,397820,3049439,24107782,195301124,
%T 1613855392,13556782136,115465571163,995112789441,8663956923566,
%U 76105986001922,673776966100254,6006525932517904,53878729432248978
%N Integer part of the logarithmic integral of the logarithmic integral of 10^n.
%o (PARI) \p 100 f(n) = for(x=1,n,print1(floor(Li(Li(10^x)))",")) Li(x) = { -eint1(log(1/x)) }
%K nonn
%O 1,1
%A _Cino Hilliard_, Jun 30 2004
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