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Search: id:A012544
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A012544 sech(sinh(x)*arcsin(x))=1-12/4!*x^4-240/6!*x^6+1680/8!*x^8... +0
1
1, 0, -12, -240, 1680, 660480, 39530304, -3855231744, -1466146656000, -147651751649280, 43245441015313408, 21785411128189063168, 453349606338812022784, -4374564365537166405795840 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A089343 A012351 A033469 this_sequence A009052 A012303 A119837

Adjacent sequences: A012541 A012542 A012543 this_sequence A012545 A012546 A012547

KEYWORD

sign

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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