A013083 - OEIS

%I #6 Aug 30 2021 12:40:22

%S 2,6,218,19894,3605042,1071814854,476307806154,295358490331254,

%T 243794366120035682,258411431296057056262,342099898262700954007226,

%U 553199120991918158454260406,1072989618644463063657069172626

%N arcsin(arcsinh(x)+sin(x))=2*x+6/3!*x^3+218/5!*x^5+19894/7!*x^7...

%t With[{nn=30},Take[CoefficientList[Series[ArcSin[ArcSinh[x]+Sin[x]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Aug 30 2021 *)

%K nonn

%O 0,1

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