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Search: id:A136686
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OFFSET
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1,1
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COMMENT
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A136677 = Numerator of Sum (-1)^(k+1)*1/k^6, k = 1..n.
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LINKS
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Eric Weisstein, The World of Mathematics: Harmonic Number
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MATHEMATICA
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Do[ f=Numerator[ Sum[ (-1)^(k+1)*1/k^6, {k, 1, n} ] ]; If[ PrimeQ[f], Print[ {n, f} ] ], {n, 1, 130} ]
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CROSSREFS
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Cf. A058313, A119682, A136675, A120296, A136676, A136677. Cf. A001008, A007406, A007408, A007410, A099828, A103345. Cf. A136681, A136682, A136683, A136684, A136685.
Adjacent sequences: A136683 A136684 A136685 this_sequence A136687 A136688 A136689
Sequence in context: A048970 A068474 A141973 this_sequence A130413 A063306 A066775
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KEYWORD
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bref,more,nonn
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AUTHOR
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Alexander Adamchuk (alex(AT)kolmogorov.com), Jan 16 2008
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