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A013473
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arctan(cos(x)-cosh(x))=238/6!*x^6-715682/10!*x^10+12212600398/14!*x^14...
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0
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-2, 238, -715682, 12212600398, -693692750003522, 99086243037690160558, -29914788669101073817179362, 16957033980662331163451765544718, -16560275867709925788740349268459459202, 26102948307736145181548875145546574191456878
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OFFSET
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0,1
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LINKS
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MATHEMATICA
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With[{nn=40}, Take[CoefficientList[Series[ArcTan[Cos[x]-Cosh[x]], {x, 0, nn}], x] Range[0, nn-2]!, {3, -1, 4}]] (* Harvey P. Dale, Apr 08 2016 *)
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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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EXTENSIONS
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STATUS
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approved
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