OFFSET
1,2
MATHEMATICA
ContinuedFraction[FullSimplify[TrigToExp[ -3 - 2Residue[x^2/((Tan[x] - x) (1 + x^2)^4), {x, I}]]], 100] (* Artur Jasinski *)
PROG
(PARI) contfrac((3*exp(8) - 24*exp(6) + 36*exp(4) - 8*exp(2) - 1167)/384) \\ Michel Marcus, Sep 09 2013
CROSSREFS
KEYWORD
nonn,cofr
AUTHOR
Artur Jasinski, Mar 26 2008
STATUS
approved