%I #4 Feb 24 2012 12:51:20
%S 1,2,4,4,-16,-88,64,2496,4096,-106624,-480896,6875136,54717440,
%T -673392640,-7775895552,99550288896,1454255472640,-21279326830592,
%U -360442602684416,6159283224084480,116460747215831040
%N exp(tanh(x)+arctan(x))=1+2*x+4/2!*x^2+4/3!*x^3-16/4!*x^4-88/5!*x^5...
%K sign
%O 0,2
%A Patrick Demichel (patrick.demichel(AT)hp.com)