OFFSET
1,2
MATHEMATICA
ContinuedFraction[FullSimplify[TrigToExp[ -3 - 2Residue[x^2/((Tan[x] - x) (1 + x^2)^2), {x, I}]]], 100](*Artur Jasinski*)
PROG
(PARI) contfrac((exp(4)-4*exp(2)-25)/8) \\ Charles R Greathouse IV, Feb 24 2012
CROSSREFS
KEYWORD
nonn,cofr
AUTHOR
Artur Jasinski, Mar 26 2008
STATUS
approved