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A013124
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Expansion of e.g.f. arcsinh(tanh(x) + log(x+1)).
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0
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0, 2, -1, -8, 18, 298, -1905, -25412, 350700, 4095754, -108856125, -940845072, 49635561030, 233977315570, -31129149144093, 12883816215268, 25437319822551000, -179134252641817006, -25989451309294893657
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OFFSET
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0,2
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LINKS
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EXAMPLE
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2*x - 1/2!*x^2 - 8/3!*x^3 + 18/4!*x^4 + 298/5!*x^5 ...
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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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