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A012188 sinh(arctan(sin(x)))=x-2/3!*x^3+16/5!*x^5-272/7!*x^7+256/9!*x^9... 0
1, -2, 16, -272, 256, 1758208, -549115904, 178127730688, -68157333438464, 31349506823815168, -17274394522483687424, 11298666083444901019648, -8681212227186028691062784, 7756335594110841587790512128 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A090305 A197458 A050974 * A000182 A009764 A189257

Adjacent sequences:  A012185 A012186 A012187 * A012189 A012190 A012191

KEYWORD

sign

AUTHOR

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

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Last modified February 17 11:30 EST 2012. Contains 206011 sequences.