login
tanh(sec(x)*arcsinh(x))=x-504/7!*x^7+11904/9!*x^9-1023616/11!*x^11...
0

%I #4 Feb 24 2012 12:51:09

%S 1,0,0,-504,11904,-1023616,190103680,-27296677888,6616599617536,

%T -2038987281108992,733961541487493120,-333541890591777587200,

%U 180073909555827471974400,-114101788265471646305353728

%N tanh(sec(x)*arcsinh(x))=x-504/7!*x^7+11904/9!*x^9-1023616/11!*x^11...

%K sign

%O 0,4

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