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A012196
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arctan(arctan(arcsin(x)))=x-3/3!*x^3+57/5!*x^5-2419/7!*x^7+198801/9!*x^9...
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0
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1, -3, 57, -2419, 198801, -25335395, 4816346441, -1245230547347, 427817295559329, -186336568593526211, 101138532707457916121, -66575531182102753799603, 52444802490227536269748273
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internal format)
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[ArcTan[ArcTan[ArcSin[x]]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Mar 15 2015 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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EXTENSIONS
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STATUS
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approved
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