%I #4 Feb 24 2012 12:51:21
%S 2,-5,-55,-1535,-80695,-6860075,-859242475,-148907237375,
%T -34123911391375,-9992873727945875,-3640782796679981875,
%U -1615246696514236394375,-857352190238672679484375
%N sin(arctanh(x)+arcsin(x))=2*x-5/3!*x^3-55/5!*x^5-1535/7!*x^7...
%K sign
%O 0,1
%A Patrick Demichel (patrick.demichel(AT)hp.com)