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A012473
sech(cos(x)*log(x+1))=1-1/2!*x^2+3/3!*x^3+6/4!*x^4-60/5!*x^5...
+0
1
1, 0, -1, 3, 6, -60, 0, 2310, -10752, -84168, 1152240, 2453880, -154467192, 797768400, 16907851688, -250017997320, -1746679208128, 77446551835648, -318565680255360, -18241668233387712, 262053618149070080
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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 30 13:13 EST 2009. Contains 167758 sequences.
AT&T Labs Research
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