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A013545 Numerator of the coefficient [x^(2n+1)] of the Taylor series arctanh(cosec(x)-coth(x))= -x/6 +13*x^3/324 +29*x^5/27216 +397*x^7/2449440 +74927*x^9/3491921664 +.. 0
-1, 13, 29, 397, 74927, 2570951, 495301, 2978520989, 879781928617, 1962442468445621, 4485273725677799419, 17810142018975186977 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A123571 A166272 A195878 * A120273 A104817 A048450

Adjacent sequences:  A013542 A013543 A013544 * A013546 A013547 A013548

KEYWORD

sign,frac

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

EXTENSIONS

Values replaced by numerators. - R. J. Mathar, Dec 21 2011

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.