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A013063
tanh(sinh(x)+arctan(x))=2*x-17/3!*x^3+617/5!*x^5-48975/7!*x^7...
0
2, -17, 617, -48975, 6737777, -1421214615, 425703805529, -171743951533455, 89764180627128673, -58996320723281672103, 47619994236282288610313, -46308836140187913937129823, 53400247746119449830219271633
OFFSET
0,1
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Tanh[Sinh[x]+ArcTan[x]], {x, 0, nn}], x]Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Dec 09 2012 *)
CROSSREFS
Sequence in context: A062710 A012939 A013094 * A012992 A054867 A268270
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved