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Search: id:A012872
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A012872 arcsin(sech(x)*log(x+1))=x-1/2!*x^2-6/4!*x^4+43/5!*x^5-195/6!*x^6... +0
1
1, -1, 0, -6, 43, -195, 1568, -15204, 151373, -1798245, 23630992, -338936730, 5409752775, -93357461015, 1736114575232, -34849328368680, 747209331349305, -17053712316379593, 413430901134512288 (list; graph; listen)
OFFSET

0,4

CROSSREFS

Sequence in context: A083940 A101071 A097298 this_sequence A099322 A014989 A015552

Adjacent sequences: A012869 A012870 A012871 this_sequence A012873 A012874 A012875

KEYWORD

sign

AUTHOR

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

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Last modified December 4 12:27 EST 2008. Contains 151280 sequences.


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