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A012551 arctanh(sinh(x)*tan(x))=2/2!*x^2+12/4!*x^4+382/6!*x^6+23352/8!*x^8... 0
2, 12, 382, 23352, 2464922, 398069892, 91079960662, 28062488827632, 11197997254599602, 5618500857338248572, 3461960315033768973742, 2569953015248391982844712, 2262189595338137069466955082 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A158261 A012547 A009706 * A156509 A051009 A060942

Adjacent sequences:  A012548 A012549 A012550 * A012552 A012553 A012554

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 20:06 EST 2012. Contains 205955 sequences.