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Search: id:A058210
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| A058210 |
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[ exp(gamma) n log log n ], where gamma is Euler's constant (A001620). |
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+0
4
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| -2, 0, 2, 4, 6, 8, 10, 12, 14, 17, 19, 21, 24, 26, 29, 31, 34, 36, 39, 41, 44, 46, 49, 52, 54, 57, 60, 62, 65, 68, 70, 73, 76, 79, 81, 84, 87, 90, 92, 95, 98, 101, 104, 107, 109, 112, 115, 118, 121, 124, 127, 130, 133, 135, 138, 141, 144, 147, 150
(list; graph; listen)
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OFFSET
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2,1
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COMMENT
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Theorem (G. Robin): a(n) > sigma(n) for all n >= 5041 if and only if the Riemann Hypothesis is true.
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REFERENCES
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D. S. Mitrinovic et al., Handbook of Number Theory, Kluwer, Section III.2.2.b.
G. Robin, Grandes valeurs de la fonction somme des diviseurs et hypothese de Riemann, J. Math. Pures Appl. 63 (1984), 187-213.
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CROSSREFS
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See A058209.
Sequence in context: A120553 A078023 A077484 this_sequence A079550 A067648 A052438
Adjacent sequences: A058207 A058208 A058209 this_sequence A058211 A058212 A058213
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KEYWORD
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sign
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Nov 30 2000
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