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Search: id:A012477
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A012477 arctanh(cos(x)*sin(x))=x-2/3!*x^3-40/5!*x^5+208/7!*x^7+64640/9!*x^9... +0
1
1, -2, -40, 208, 64640, 986368, -652487680, -60911593472, 20973645824000, 6185783347314688, -1429441147870904320, -1203534317202507825152, 109702530161745707663360, 415034067689086640359211008 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A042683 A047660 A073418 this_sequence A003760 A155977 A092698

Adjacent sequences: A012474 A012475 A012476 this_sequence A012478 A012479 A012480

KEYWORD

sign

AUTHOR

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

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Last modified December 17 19:39 EST 2009. Contains 170821 sequences.

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