The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A176327 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A176327

Numerators of the rational sequence with e.g.f. (x/2)*(1+exp(-x))/(1-exp(-x)).
(history; published version)

#26 by N. J. A. Sloane at Sat Oct 21 21:15:10 EDT 2017

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reviewed

approved

#25 by Michel Marcus at Fri Oct 20 11:52:58 EDT 2017

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proposed

reviewed

#24 by Antti Karttunen at Fri Oct 20 10:14:44 EDT 2017

STATUS

editing

proposed

#23 by Antti Karttunen at Fri Oct 20 10:13:58 EDT 2017

LINKS

Antti Karttunen, <a href="/A176327/b176327.txt">Table of n, a(n) for n = 0..200</a>

STATUS

approved

editing

Discussion

Fri Oct 20

10:14

Antti Karttunen: B-file matches with that of A027642 computed by T. D. Noe, apart from term a(1).

#22 by Charles R Greathouse IV at Tue Sep 26 11:22:14 EDT 2017

STATUS

editing

approved

#21 by Charles R Greathouse IV at Tue Sep 26 11:22:08 EDT 2017

PROG

(PARI) apply(numerator, Vec(serlaplace((x/2)*(1+exp(-x))/(1-exp(-x))))) \\ Charles R Greathouse IV, Sep 26 2017

STATUS

approved

editing

#20 by N. J. A. Sloane at Tue Jun 13 06:55:49 EDT 2017

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proposed

approved

#19 by Jean-François Alcover at Tue Jun 13 06:46:25 EDT 2017

STATUS

editing

proposed

#18 by Jean-François Alcover at Tue Jun 13 06:46:14 EDT 2017

MATHEMATICA

terms = 41; egf = (x/2)*((1 + Exp[-x])/(1 - Exp[-x])) + O[x]^(terms+1);

CoefficientList[egf, x]*Range[0, terms-1]! // Numerator (* Jean-François Alcover, Jun 13 2017 *)

STATUS

approved

editing

#17 by Joerg Arndt at Sat Feb 15 14:06:10 EST 2014

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proposed

approved