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A009409
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Expansion of log(1+x)*cos(tanh(x)).
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0
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0, 1, -1, -1, 0, 49, -165, -393, -504, 66753, -414225, 21295, -15435816, 561504241, -5685997317, 34755442407, -746778152400, 18822723988481, -281687621998401, 3781703063806559, -80079140948241200, 1899387285774263089
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OFFSET
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0,6
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LINKS
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FORMULA
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MATHEMATICA
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With[{nn=25}, CoefficientList[Series[Log[1+x]*Cos[Tanh[x]], {x, 0, nn}], x]Range[0, nn]!] (* Harvey P. Dale, Oct 11 2011 *)
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CROSSREFS
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KEYWORD
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sign,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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