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Search: id:A014509
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| A014509 |
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Truncation of Bernoulli number: [|B_2n|] * sign(B_2n). |
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+0
2
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| 1, 0, 0, 0, 0, 0, 0, 1, -7, 54, -529, 6192, -86580, 1425517, -27298231, 601580873, -15116315767, 429614643061, -13711655205088, 488332318973593, -19296579341940068, 841693047573682615, -40338071854059455413
(list; graph; listen)
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OFFSET
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0,9
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REFERENCES
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M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 810.
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LINKS
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M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].
Index entries for sequences related to Bernoulli numbers.
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FORMULA
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abs(a(n)) = 2*(2*n)!/(2*Pi)^(2*n)*(1-sum(k=2, m, 1/k^(2n))+O(1/m^(2n))) - Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 29 2003
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CROSSREFS
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Sequence in context: A015562 A152108 A093742 this_sequence A084065 A043077 A014637
Adjacent sequences: A014506 A014507 A014508 this_sequence A014510 A014511 A014512
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KEYWORD
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sign
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AUTHOR
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Simon Plouffe (simon.plouffe(AT)gmail.com)
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EXTENSIONS
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Entry revised by Franklin T. Adams-Watters, Sep 14 2005
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