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A012234
sinh(arctan(atanh(x)))=x+1/3!*x^3+9/5!*x^5+281/7!*x^7+13233/9!*x^9...
+0
1
1, 1, 9, 281, 13233, 1179729, 144386553, 25501409961, 5869292202465, 1744083324947745, 643531258862953065, 289976769842011018425, 156375721502624955046545, 99525811638120512862203505
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
AT&T Labs Research
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