Search: id:A069913
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%I A069913
%S A069913 0,1,2,5,4,11,6,16,12,19,10,37,12,27,26,42,16,54,18,59,36,43,22,100,32,
%T A069913 51,48,81,28,113,30,99,56,67,54,162,36,75,66,152,40,153,42,125,108,91,
%U A069913 46,240,60,134,86,147,52,202,82,204,96,115,58,331,60,123,144,219,96
%N A069913 Sum_{d|n} (d-1)*tau(n/d).
%F A069913 a(n) = A007429(n) - A007425(n).
%Y A069913 Cf. A000005, A006579.
%Y A069913 Sequence in context: A071297 A114393 A100710 this_sequence A072403 A010078 
               A074639
%Y A069913 Adjacent sequences: A069910 A069911 A069912 this_sequence A069914 A069915 
               A069916
%K A069913 nonn
%O A069913 1,3
%A A069913 Vladeta Jovovic (vladeta(AT)eunet.rs), May 04 2002

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