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A012869
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Numerator of [x^(2n+1)] in the Taylor series arccos(cot(x)*arcsinh(x))= x-x^3/15 +4*x^5/75 -2098*x^7/70875 +2969*x^9/141750 -35380322*x^11/2280403125 +...
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0
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1, -1, 4, -2098, 2969, -35380322, 8716535447, -1798049740063, 19914123417989, -181876796289510461, 186781215146313235681, -24121633940851905518327, 40268463790986459750095639, -4555735317599779344180767417
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OFFSET
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0,3
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COMMENTS
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The inner function is cot(x)*arcsinh(x) = 1-x^2/2 +13*x^4/120 -49*x^6/7210 +79357*x^8/1814400 -344579*x^10/10886400 +..
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LINKS
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CROSSREFS
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KEYWORD
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sign,frac
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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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Values replaced by numerators. - R. J. Mathar, Dec 22 2011
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STATUS
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approved
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