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A012551
arctanh(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+382/6!*x^6+23352/8!*x^8...
+0
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2, 12, 382, 23352, 2464922, 398069892, 91079960662, 28062488827632, 11197997254599602, 5618500857338248572, 3461960315033768973742, 2569953015248391982844712, 2262189595338137069466955082
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.
AT&T Labs Research
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