0,1
The inner function is cot(x)*tanh(x) = 1 -2*x^2/3 +2*x^4/9 -88*x^6/945 +106*x^8/2835 -2368*x^10/155925 +...
Table of n, a(n) for n=0..10.
Sequence in context: A024244 A088055 A065705 * A183720 A042921 A123006
Adjacent sequences: A012867 A012868 A012869 * A012871 A012872 A012873
nonn,frac
Patrick Demichel (patrick.demichel(AT)hp.com)
Values replaced by numerators. - R. J. Mathar, Dec 22 2011
approved