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A012862
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Numerators of coefficients in Taylor series expansion of arccosh(cosec(x)*arctanh(x)).
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1
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1, 7, 211, 87583, 1551091, 26136390307, 26950515152273, 1654341031718587, 6818178632103851, 5017431660958281659233, 191065819328171102145251947, 118321866231849362450533828517, 14214423223280744764724946368993, 9325196363494467475081247926762363
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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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x+7/30*x^3+211/1800*x^5+87583/1134000*x^7+1551091/27216000*x^9+...
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CROSSREFS
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KEYWORD
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nonn,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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STATUS
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approved
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