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A012436
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cos(arctan(x)*arcsin(x))=1-12/4!*x^4+120/6!*x^6-7728/8!*x^8...
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0
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1, 0, -12, 120, -7728, 358080, -54956352, 5983845504, -1674895273728, 331567748941824, -147083657045302272, 46138766175213803520, -29742693904194176593920, 13565163573403491059712000
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OFFSET
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0,3
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LINKS
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Table of n, a(n) for n=0..13.
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MATHEMATICA
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With[{nn=30}, Take[CoefficientList[Series[Cos[ArcTan[x]ArcSin[x]], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Oct 14 2019 *)
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CROSSREFS
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Sequence in context: A012615 A012559 A009164 * A012619 A012563 A301898
Adjacent sequences: A012433 A012434 A012435 * A012437 A012438 A012439
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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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STATUS
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approved
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