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A071708 Numerator of Sum_{k=1..n} phi(k)/k. 1

%I

%S 1,3,13,8,52,19,163,361,1223,1307,16477,5749,83977,88267,280817,

%T 147916,2754812,2839897,58552633,60492571,63263911,65468386,

%U 1612469468,549883871,579629587,596790577,1864736021,1912541636,58587007624,59449633388,1939984033478

%N Numerator of Sum_{k=1..n} phi(k)/k.

%e 1, 3/2, 13/6, 8/3, 52/15, 19/5, 163/35, 361/70, 1223/210, ...

%Y Cf. A072155.

%K nonn,frac

%O 1,2

%A _N. J. A. Sloane_, Jun 28 2002

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Last modified February 17 15:19 EST 2019. Contains 320220 sequences. (Running on oeis4.)