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Search: id:A012970
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A012970 sec(arctan(x)+log(x+1))=1+4/2!*x^2-6/3!*x^3+83/4!*x^4-460/5!*x^5... +0
1
1, 0, 4, -6, 83, -460, 5470, -53130, 722585, -9842040, 159135400, -2720898950, 51918624875, -1059369023700, 23452521576250, -553824975590250, 13985888446648625, -374715350908366000, 10638956635471235500 (list; graph; listen)
OFFSET

0,3

CROSSREFS

Sequence in context: A061216 A058163 A013127 this_sequence A101138 A012897 A013079

Adjacent sequences: A012967 A012968 A012969 this_sequence A012971 A012972 A012973

KEYWORD

sign

AUTHOR

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

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.


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