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Search: id:A013121
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A013121 arctan(tanh(x)+log(x+1))=2*x-1/2!*x^2-16/3!*x^3+42/4!*x^4+748/5!*x^5... +0
1
2, -1, -16, 42, 748, -5130, -80792, 1139880, 15089632, -401063040, -3986514112, 203199458880, 1170901443424, -139120136531376, -67846807312832, 122712218206730880, -762584236008814848 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A162005 A013125 A012967 this_sequence A012963 A013120 A012968

Adjacent sequences: A013118 A013119 A013120 this_sequence A013122 A013123 A013124

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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