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A012081 arcsinh(arcsin(tan(x)))=x+2/3!*x^3+24/5!*x^5+888/7!*x^7+68352/9!*x^9... 2
1, 2, 24, 888, 68352, 8853888, 1724221056, 470304668928, 171029448056832, 79950698284462080, 46709069479002931200, 33347332565041919950848, 28565775294718770340331520, 28915860353300526164581613568 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A322895 A264559 A012186 * A137274 A002032 A015212

Adjacent sequences:  A012078 A012079 A012080 * A012082 A012083 A012084

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified October 23 11:49 EDT 2021. Contains 348212 sequences. (Running on oeis4.)