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A013088
arctan(arcsinh(x)+arcsin(x))=2*x-16/3!*x^3+786/5!*x^5-95184/7!*x^7...
0
2, -16, 786, -95184, 21536802, -7826481936, 4171610593458, -3065657686804944, 2970875779254468162, -3670749245446679143440, 5632318074161153772233298, -10506981374857963835979345360
OFFSET
0,1
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[ArcTan[ArcSinh[x]+ArcSin[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Mar 06 2023 *)
CROSSREFS
Sequence in context: A013029 A012915 A012920 * A013137 A013990 A013005
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved