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Search: id:A012140
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A012140 arcsinh(arcsin(arctanh(x)))=x+2/3!*x^3+32/5!*x^5+1336/7!*x^7... +0
1
1, 2, 32, 1336, 108800, 14701312, 2986596480, 852635258112, 325714440802304, 160437668874481664, 98998538588401238016, 74780329820590921056256, 67860526461080359727955968, 72835853250644384064569933824 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A012237 A012093 A012214 this_sequence A012209 A129348 A087084

Adjacent sequences: A012137 A012138 A012139 this_sequence A012141 A012142 A012143

KEYWORD

nonn

AUTHOR

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

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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