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A012359
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sec(tan(x)*log(x+1))=1+12/4!*x^4-60/5!*x^5+570/6!*x^6-3780/7!*x^7...
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0
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1, 0, 0, 0, 12, -60, 570, -3780, 43680, -447552, 6232200, -82861680, 1313835336, -21072521184, 381305512224, -7156099161120, 146595771528960, -3138961332436864, 71962899144642240
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OFFSET
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0,5
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LINKS
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MATHEMATICA
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With[{nn=20}, CoefficientList[Series[Sec[Tan[x]Log[x+1]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Nov 25 2012 *)
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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Patrick Demichel (patrick.demichel(AT)hp.com)
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STATUS
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approved
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