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A106830
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Numerator of Sum_{ primes p <= n} 1/p.
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3
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0, 1, 5, 5, 31, 31, 247, 247, 247, 247, 2927, 2927, 40361, 40361, 40361, 40361, 716167, 716167, 14117683, 14117683, 14117683, 14117683, 334406399, 334406399, 334406399, 334406399, 334406399, 334406399, 9920878441, 9920878441, 314016924901, 314016924901
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Very similar to A024451, which see for further information.
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EXAMPLE
| 0, 1/2, 5/6, 5/6, 31/30, 31/30, 247/210, 247/210, 247/210, 247/210, 2927/2310, 2927/2310, 40361/30030, 40361/30030, 40361/30030, ...
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CROSSREFS
| Denominators are in A034386. Cf. A024451/A002110.
Sequence in context: A153271 A117858 A014434 * A160608 A160672 A160555
Adjacent sequences: A106827 A106828 A106829 * A106831 A106832 A106833
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KEYWORD
| nonn,frac
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), May 22 2005
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