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Search: id:A012708
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A012708 sech(arctanh(x)*log(x+1))=1-12/4!*x^4+60/5!*x^5-570/6!*x^6... +0
1
1, 0, 0, 0, -12, 60, -570, 3780, -29568, 169344, -557160, -13049520, 375064008, -7823848032, 135678667488, -2221166656800, 32120158935552, -397914002426496, 2522488580207424, 61215640433391744 (list; graph; listen)
OFFSET

0,5
CROSSREFS

Sequence in context: A012517 A012314 A012360 this_sequence A009077 A012702 A009163

Adjacent sequences: A012705 A012706 A012707 this_sequence A012709 A012710 A012711

KEYWORD

sign

AUTHOR

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

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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