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Search: id:A012829
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A012829 tanh(sec(x)*arcsinh(x))=x-504/7!*x^7+11904/9!*x^9-1023616/11!*x^11... +0
1
1, 0, 0, -504, 11904, -1023616, 190103680, -27296677888, 6616599617536, -2038987281108992, 733961541487493120, -333541890591777587200, 180073909555827471974400, -114101788265471646305353728 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A061124 A141145 A166763 this_sequence A013973 A012744 A145095

Adjacent sequences: A012826 A012827 A012828 this_sequence A012830 A012831 A012832

KEYWORD

sign

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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