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Search: id:A012450
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A012450 arcsinh(arctan(x)*tan(x))=2/2!*x^2+40/6!*x^6-2688/8!*x^8+210208/10!*x^10... +0
2
2, 0, 40, -2688, 210208, -13038080, 2241915520, -589026013184, 146361182839296, -42690102749216768, 18963982821764573184, -10109322351828827471872, 5702647873782168851521536 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Adjacent sequences: A012447 A012448 A012449 this_sequence A012451 A012452 A012453

Sequence in context: A009548 A120489 A012445 this_sequence A097173 A009493 A009718

KEYWORD

sign

AUTHOR

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

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Last modified May 10 13:09 EDT 2008. Contains 139661 sequences.

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