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, 2, 2, 4, 87734, 310732, 2631724, 13785346041608, 303257395102, 616840823966644, 6080390575672283210764, 207461256206578143748856, 79209152838572743713996404
Offset: 0
Extensions
Values replaced by numerators. - R. J. Mathar, Dec 20 2011