A013117 - OEIS

%I #4 Feb 24 2012 12:51:19

%S 1,2,3,2,-11,-38,79,954,137,-33582,-96741,1555666,10865661,-86780822,

%T -1244836953,4930566346,162614558865,-100938990558,-24583330322637,

%U -71145784216286,4265463634593925,30382485085757818

%N exp(tanh(x)+log(x+1))=1+2*x+3/2!*x^2+2/3!*x^3-11/4!*x^4-38/5!*x^5...

%K sign

%O 0,2

%A Patrick Demichel (patrick.demichel(AT)hp.com)