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A013147
arcsinh(tanh(x)+arctan(x))=2*x-12/3!*x^3+488/5!*x^5-55552/7!*x^7...
+0
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2, -12, 488, -55552, 12546944, -4711567872, 2650074624000, -2084720933010432, 2185097305985613824, -2943182792681798926336, 4953485656236312191369216, -10186669183126638973192372224
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
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