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Search: id:A013573
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A013573 exp(arctanh(x)/exp(x))=1+x-1/2!*x^2+9/4!*x^4-20/5!*x^5+65/6!*x^6... +0
1
1, 1, -1, 0, 9, -20, 65, 406, -511, 21624, 88577, 1053426, 14764321, 143838916, 2193647521, 29669704702, 457719400449, 7433158061552, 128311987616769, 2329120580336746, 45112841958764321, 905762343424701116 (list; graph; listen)
OFFSET

0,5

CROSSREFS

Sequence in context: A143704 A128153 A109805 this_sequence A146388 A013338 A008847

Adjacent sequences: A013570 A013571 A013572 this_sequence A013574 A013575 A013576

KEYWORD

sign

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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