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A071708 Numerator of Sum_{k=1..n} phi(k)/k. 1
1, 3, 13, 8, 52, 19, 163, 361, 1223, 1307, 16477, 5749, 83977, 88267, 280817, 147916, 2754812, 2839897, 58552633, 60492571, 63263911, 65468386, 1612469468, 549883871, 579629587, 596790577, 1864736021, 1912541636, 58587007624, 59449633388, 1939984033478 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..31.

EXAMPLE

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

CROSSREFS

Cf. A072155.

Sequence in context: A012789 A273025 A273122 * A136592 A085416 A107802

Adjacent sequences:  A071705 A071706 A071707 * A071709 A071710 A071711

KEYWORD

nonn,frac

AUTHOR

N. J. A. Sloane, Jun 28 2002

STATUS

approved

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Last modified January 18 06:34 EST 2019. Contains 319269 sequences. (Running on oeis4.)