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A013548
sech(cosec(x)-cotanh(x))=1-35/6!*x^6+5/8!*x^8-13684/10!*x^10...
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1, 0, 0, -35, 5, -13684, 1572, -66226, 1853110, -40553751164, 5789555879, -242818131784156, 38257326112356, -3934030213342971
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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 19 12:50 EST 2009. Contains 171053 sequences.
AT&T Labs Research
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