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A012858 Numerator of [x^(4n+2)] in the Taylor series log(cosec(x)*sinh(x))= x^2/3 +2*x^6/2835 +2*x^10/467775 +4*x^14/127702575 +.. 1
1, 2, 2, 4, 87734, 310732, 2631724, 13785346041608, 303257395102, 616840823966644, 6080390575672283210764, 207461256206578143748856, 79209152838572743713996404 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

CROSSREFS

Cf. A069853 (inner function), A202520 (denominators).

Sequence in context: A134084 A267346 A264933 * A292383 A332896 A100247

Adjacent sequences: A012855 A012856 A012857 * A012859 A012860 A012861

KEYWORD

nonn,frac

AUTHOR

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

EXTENSIONS

Values replaced by numerators. - R. J. Mathar, Dec 20 2011

STATUS

approved

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Last modified December 4 23:46 EST 2022. Contains 358572 sequences. (Running on oeis4.)