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A099320
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Denominators of an approximation of Riemann to pi(n).
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2
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1, 2, 2, 4, 1, 2, 1, 3, 12, 3, 6, 3, 6, 3, 3, 24, 12, 12, 12, 12, 12, 12, 12, 12, 6, 12, 4, 12, 12, 12, 12, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 15, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 5, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Edwards, p. 22, calls this J(n).
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REFERENCES
| J. C. Lagarias and A. M. Odlyzko, Computing pi(x): an analytic method, J. Algorithms, 8 (2087), 173-191.
H. M. Edwards, Riemann's Zeta Function, Academic Press, NY, 1974.
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..10000
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EXAMPLE
| 0, 1/2, 3/2, 9/4, 3, 7/2, 4, 14/3, 61/12, 16/3, 35/6, 19/3,...
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CROSSREFS
| See A099319 for definition and program.
Sequence in context: A071436 A143485 A181633 * A206714 A034951 A064848
Adjacent sequences: A099317 A099318 A099319 * A099321 A099322 A099323
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KEYWORD
| nonn,frac
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2004
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