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A096718 Denominators of terms in series expansion of arcsin(arctan(x)). 10
1, 6, 120, 5040, 362880, 4435200, 32947200, 145297152000, 69701632000, 13516122267648000, 5676771352412160000, 2872446304320552960000, 1723467782592331776000000, 1935799013407707050803200, 485144691014524112732160000, 1353553687930522274522726400000, 204193242064947360270857011200000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 0..200

EXAMPLE

arcsin(arctan(x)) = x - 1/6*x^3 + 13/120*x^5 - 341/5040*x^7 + 18649/362880*x^9 - 177761/4435200*x^11 + ...

MATHEMATICA

Denominator[Take[CoefficientList[Series[ArcSin[ArcTan[x]], {x, 0, 40}], x], {2, -1, 2}]] (* G. C. Greubel, Nov 17 2016 *)

CROSSREFS

Cf. A096717, A096664, A096671, A096712, A096716, A045688, A045689, A096721, A096722.

Sequence in context: A126448 A126446 A057003 * A096720 A009445 A094273

Adjacent sequences:  A096715 A096716 A096717 * A096719 A096720 A096721

KEYWORD

nonn,frac

AUTHOR

N. J. A. Sloane, Aug 15 2004

STATUS

approved

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Last modified May 25 11:27 EDT 2020. Contains 334592 sequences. (Running on oeis4.)