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A096718
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Denominators of terms in series expansion of arcsin(arctan(x)).
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10
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1, 6, 120, 5040, 362880, 4435200, 32947200, 145297152000, 69701632000, 13516122267648000, 5676771352412160000, 2872446304320552960000, 1723467782592331776000000, 1935799013407707050803200, 485144691014524112732160000, 1353553687930522274522726400000, 204193242064947360270857011200000
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OFFSET
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0,2
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LINKS
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G. C. Greubel, Table of n, a(n) for n = 0..200
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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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Denominator[Take[CoefficientList[Series[ArcSin[ArcTan[x]], {x, 0, 40}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 17 2016 *)
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CROSSREFS
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Cf. A096717, A096664, A096671, A096712, A096716, A045688, A045689, A096721, A096722.
Sequence in context: A126448 A126446 A057003 * A096720 A354333 A009445
Adjacent sequences: A096715 A096716 A096717 * A096719 A096720 A096721
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KEYWORD
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nonn,frac
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AUTHOR
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N. J. A. Sloane, Aug 15 2004
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STATUS
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approved
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