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A076549
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Numerator of (2n+1)(2n+2) B_{2n}, where B_n are the Bernoulli numbers. Also numerators of the asymptotic expansion of the polygamma function psi'''(z).
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2
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2, 3, 2, -1, 4, -3, 10, -691, 280, -10851, 438670, -1222277, 3418052, -1181820455, 1077690978, -23749461029, 137853460416080, -84802531453387, 541314450257070, -26315271553053477373, 761798417598805340
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OFFSET
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0,1
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LINKS
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Table of n, a(n) for n=0..20.
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].
Abramowitz and Stegun, Handbook of mathematical functions, p. 260 (6.4.14)
Abramowitz and Stegun, Handbook of mathematical functions, p. 260 (6.4.14)
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CROSSREFS
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Denominators are in A006956. Cf. A002427/A006955.
Sequence in context: A118457 A129773 A105789 * A210500 A104411 A216084
Adjacent sequences: A076546 A076547 A076548 * A076550 A076551 A076552
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KEYWORD
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easy,frac,sign
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AUTHOR
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Ralf Stephan, Oct 19 2002
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STATUS
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approved
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