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A096717
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Numerators of terms in series expansion of arcsin(arctan(x)).
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8
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1, -1, 13, -341, 18649, -177761, 1087433, -4043494549, 1674761567, -284891766539657, 106410874319325461, -48402125366670946877, 26344930021064765797249, -27048608191991004321089, 6237195766537863970288933, -16102066950215127630856787159, 2258820895862623437612519923989
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OFFSET
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0,3
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LINKS
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EXAMPLE
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arcsin(arctan(x)) = x - 1/6*x^3 + 13/120*x^5 - 341/5040*x^7 + 18649/362880*x^9 - 177761/4435200*x^11 + ...
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MATHEMATICA
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Numerator[Take[CoefficientList[Series[ArcSin[ArcTan[x]], {x, 0, 50}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 17 2016 *)
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CROSSREFS
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Cf. A096718, A096664, A096671, A096712, A096716, A045688, A045689, A096719, A096720, A096721, A096722.
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KEYWORD
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sign,frac
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AUTHOR
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STATUS
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approved
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