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A009776
E.g.f.: tanh(log(1+x))*cos(x).
0
0, 1, -1, -3, 12, -25, -15, 623, -4592, 18909, 17595, -1233551, 13641276, -81119597, -105681667, 10102782675, -148962722880, 1158387845177, 1940315387607, -234950313889819, 4330346354150860, -41597707520306049, -85160442362115351
OFFSET
0,4
MATHEMATICA
With[{nn=30}, CoefficientList[Series[Tanh[Log[1+x]]*Cos[x], {x, 0, nn}], x] Range[0, nn]!] (* Harvey P. Dale, Sep 21 2012 *)
CROSSREFS
Sequence in context: A076506 A206917 A320334 * A331241 A068967 A071355
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Definition clarified by Harvey P. Dale, Sep 21 2012
STATUS
approved