%I #20 Jun 22 2015 22:21:19
%S 0,1,-2,9,-55,434,-4180,47590,-625770,9339880,-156097760,2889491800,
%T -58706203400,1299203207600,-31115627649600,801958361812400,
%U -22134642846706000,651438145653776000,-20365743882600064000
%N Expansion of log(1+tan(log(1+x))).
%F a(n) ~ (n-1)! * (-1)^(n+1) / (1-exp(-Pi/4))^n. - _Vaclav Kotesovec_, Jan 23 2015
%t With[{nn=20},CoefficientList[Series[Log[1+Tan[Log[1+x]]],{x,0,nn}], x]Range[0,nn]!] (* _Harvey P. Dale_, Sep 28 2011 *)
%K sign,easy
%O 0,3
%A _R. H. Hardin_
%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997
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