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Search: id:A012056
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A012056 sinh(sin(arctanh(x)))=x+2/3!*x^3+16/5!*x^5+216/7!*x^7-1280/9!*x^9... +0
1
1, 2, 16, 216, -1280, -1141504, -263392128, -64804059904, -18858549039104, -6592583427379200, -2757743938862710784, -1367930584522073079808, -796483574916192660455424, -539009967859883250211815424 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A087923 A004121 A114531 this_sequence A062971 A012164 A047657

Adjacent sequences: A012053 A012054 A012055 this_sequence A012057 A012058 A012059

KEYWORD

sign

AUTHOR

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

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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