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Expansion of e.g.f.: sinh(tan(log(1+x))).
1

%I #16 Jan 31 2018 03:17:55

%S 0,1,-1,5,-24,166,-1350,13026,-143808,1790560,-24782400,377280056,

%T -6262125936,112504698840,-2174463129384,44977635083096,

%U -991157036904960,23178047520065536,-573180268144301568,14943307041391438080

%N Expansion of e.g.f.: sinh(tan(log(1+x))).

%H G. C. Greubel, <a href="/A009601/b009601.txt">Table of n, a(n) for n = 0..429</a>

%t With[{nn=20},CoefficientList[Series[Sinh[Tan[Log[1+x]]],{x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, Jun 10 2017 *)

%o (PARI) x='x+O('x^30); concat([0], Vec(serlaplace(sinh(tanh(log(1+x)))))) \\ _G. C. Greubel_, Jan 30 2018

%K sign,easy

%O 0,4

%A _R. H. Hardin_

%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997

%E Definition clarified and previous Mathematica program replaced by _Harvey P. Dale_, Jun 10 2017