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Search: id:A125551
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| A125551 |
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As p runs through primes >= 5, sequence gives { numerator of Sum_{k=1..p-1} 1/k^2 } / p. |
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1
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| 41, 767, 178939, 18500393, 48409924397, 12569511639119, 15392144025383, 358066574927343685421, 282108494885353559158399, 911609127797473147741660153, 1128121200256091571107985892349
(list; graph; listen)
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OFFSET
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3,1
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COMMENT
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This is an integer by a theorem of Waring and Wolstenholme.
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MATHEMATICA
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a = {}; Do[AppendTo[a, (1/(Prime[x]))Numerator[Sum[1/x^2, {x, 1, Prime[x] - 1}]]], {x, 3, 50}]; a
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CROSSREFS
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Cf. A061002, A034602.
Adjacent sequences: A125548 A125549 A125550 this_sequence A125552 A125553 A125554
Sequence in context: A009761 A118448 A060563 this_sequence A087856 A010957 A010993
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Jan 03 2007
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