%I A063035
%S A063035 4,39,392,3917,39206,392074,3920709,39207306,392072876,3920729058,
%T A063035 39207289720,392072897726,3920728981706,39207289814053,392072898145897,
%U A063035 3920728981459595
%N A063035 Number of integers containing a square factor less than or equal to 10^n.
%o A063035 (PARI) { default(realprecision, 50); for (n=1, 100, t=10^n - 1; a=10^n 
               - sum(k=1, sqrt(t), moebius(k)*floor(t/k^2)); write("b063035.txt", 
               n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Aug 16 2009]
%Y A063035 a(n) + A053462(n) = 10^n.
%Y A063035 Sequence in context: A112460 A059945 A093851 this_sequence A123618 A046449 
               A068187
%Y A063035 Adjacent sequences: A063032 A063033 A063034 this_sequence A063036 A063037 
               A063038
%K A063035 nonn
%O A063035 1,1
%A A063035 Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 02 2001
%E A063035 More terms from Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 16 2009