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A012488
tanh(cos(x)*arcsin(x))=x-4/3!*x^3+60/5!*x^5-2056/7!*x^7+127376/9!*x^9...
0
1, -4, 60, -2056, 127376, -11253504, 1524986944, -257629834112, 60842617280768, -16737691854400512, 6112605714322803712, -2481449664133693548544, 1299422306103439813611520
OFFSET
0,2
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Tanh[Cos[x]ArcSin[x]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Jun 20 2020 *)
CROSSREFS
Sequence in context: A303286 A322450 A099705 * A374887 A181444 A177780
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved