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Search: id:A012632
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A012632 sec(arcsinh(x)*arctan(x))=1+12/4!*x^4-360/6!*x^6+26768/8!*x^8... +0
1
1, 0, 12, -360, 26768, -3003840, 500757312, -114797434752, 34719912016128, -13385737151096832, 6408112715151793152, -3729311544255904696320, 2592887206723575200256000, -2122643658026530680956928000 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A012552 A012385 A012430 this_sequence A081791 A024298 A081021

Adjacent sequences: A012629 A012630 A012631 this_sequence A012633 A012634 A012635

KEYWORD

sign

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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