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Search: id:A012208
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A012208 tanh(arctan(atan(x)))=x-6/3!*x^3+184/5!*x^5-13136/7!*x^7... +0
1
1, -6, 184, -13136, 1679488, -335723264, 96492653568, -37665610561536, 19158060131778560, -12304193595906129920, 9734505561510299566080, -9299736312230986726768640, 10553185490408007072659537920 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A064120 A041429 A089905 this_sequence A012181 A012224 A037298

Adjacent sequences: A012205 A012206 A012207 this_sequence A012209 A012210 A012211

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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