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A012601 tan(arcsinh(x)*arcsin(x))=2/2!*x^2+328/6!*x^6+1114272/10!*x^10... 0
2, 328, 1114272, 20199941760, 1186280710279680, 172712964365318522880, 52709992654283449278504960, 30048263806420071363529720627200 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..7.

CROSSREFS

Sequence in context: A028483 A006475 A282430 * A012606 A012729 A173750

Adjacent sequences:  A012598 A012599 A012600 * A012602 A012603 A012604

KEYWORD

nonn

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved

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Last modified October 30 22:57 EDT 2020. Contains 338095 sequences. (Running on oeis4.)