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 A013176 arcsin(arctanh(x)+arctan(x))=2*x+8/3!*x^3+336/5!*x^5+32832/7!*x^7... 0
 2, 8, 336, 32832, 6596352, 2172377088, 1074790176768, 742942875451392, 684332863424888832, 809904627202731540480, 1197620189653593343131648, 2163726873433446527375769600, 4689766098958031240193965555712 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Table of n, a(n) for n=0..12. MATHEMATICA With[{nn=30}, Take[CoefficientList[Series[ArcSin[ArcTanh[x]+ArcTan[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Aug 22 2014 *) CROSSREFS Sequence in context: A012999 A013003 A009707 * A220904 A009489 A102597 Adjacent sequences: A013173 A013174 A013175 * A013177 A013178 A013179 KEYWORD nonn AUTHOR Patrick Demichel (patrick.demichel(AT)hp.com) EXTENSIONS Definition clarified by Harvey P. Dale, Aug 22 2014 STATUS approved

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Last modified February 28 02:30 EST 2024. Contains 370379 sequences. (Running on oeis4.)