0,1
Table of n, a(n) for n=0..7.
With[{nn=30}, Take[CoefficientList[Series[ArcSin[ArcTanh[x]*ArcTan[x]], {x, 0, nn}], x] Range[0, nn]!, {3, -1, 4}]] (* Ray Chandler, Nov 28 2016 *)
Sequence in context: A282430 A012601 A012606 * A173750 A088250 A142355
Adjacent sequences: A012726 A012727 A012728 * A012730 A012731 A012732
nonn
Patrick Demichel (patrick.demichel(AT)hp.com)
approved