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A012618 arctanh(arcsinh(x)*tan(x))=2/2!*x^2+4/4!*x^4+350/6!*x^6+7208/8!*x^8... 0
2, 4, 350, 7208, 1520218, 106485740, 38051376246, 6123846322896, 3217389043510578, 964215477538459732, 692917532440212444686, 338776184246581290006520, 318786053587029917056642186 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A009705 A012372 A012613 * A012557 A012562 A012753

Adjacent sequences:  A012615 A012616 A012617 * A012619 A012620 A012621

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 17:35 EST 2012. Contains 205644 sequences.