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Search: id:A012403
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A012403 tanh(arctan(x)*log(x+1))=2/2!*x^2-3/3!*x^3-10/5!*x^5-32/6!*x^6... +0
1
2, -3, 0, -10, -32, 1596, -10080, 27936, -260928, 1924560, 33929280, -686630880, 4846421760, -42426084960, 778331473920, -1890071554560, -216298842931200, 4070252020032000, -41366803088056320 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A137914 A098989 A012399 this_sequence A012655 A012650 A111606

Adjacent sequences: A012400 A012401 A012402 this_sequence A012404 A012405 A012406

KEYWORD

sign

AUTHOR

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

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

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