%I #12 Jul 18 2022 14:50:10
%S 0,1,-1,3,-8,26,-46,-542,12272,-196204,2970284,-46125412,747689152,
%T -12796612984,231568711464,-4435090726232,89781803413632,
%U -1918433012222064,43187041330469744,-1022364892192828752
%N Expansion of e.g.f.: sin(log(1+tan(x))).
%t With[{nn=20},CoefficientList[Series[Sin[Log[1+Tan[x]]],{x,0,nn}],x] Range[0,nn]!] (* _Harvey P. Dale_, Jul 18 2022 *)
%K sign,easy
%O 0,4
%A _R. H. Hardin_
%E Extended with signs by _Olivier GĂ©rard_, Mar 15 1997
%E Previous Mathematica program replaced and definition clarified by _Harvey P. Dale_, Jul 18 2022