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A012745 arcsinh(arctanh(x)*cos(x))=x-2/3!*x^3+28/5!*x^5-520/7!*x^7+59728/9!*x^9... 0
1, -2, 28, -520, 59728, -3842720, 963273920, -151564390016, 60786495498496, -18563464667034112, 10709479914780654592, -5442000735745663911936, 4284121800522638439469056, -3262273090906052050909765632 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A152280 A061629 A011944 * A143585 A151332 A098631

Adjacent sequences:  A012742 A012743 A012744 * A012746 A012747 A012748

KEYWORD

sign

AUTHOR

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

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Last modified February 16 14:07 EST 2012. Contains 205930 sequences.