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A012627 cos(arcsinh(x)*arctan(x))=1-12/4!*x^4+360/6!*x^6-16688/8!*x^8... 0
1, 0, -12, 360, -16688, 1189440, -122878272, 17448342912, -3261902393088, 775178137884672, -227406029305961472, 80264949964203755520, -33279338195895762923520, 15813964958377484261376000 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Cos[ArcSinh[x]ArcTan[x]], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Mar 27 2020 *)
CROSSREFS
Sequence in context: A012379 A012424 A009165 * A012384 A012429 A012631
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)