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Search: id:A013548
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A013548 sech(cosec(x)-cotanh(x))=1-35/6!*x^6+5/8!*x^8-13684/10!*x^10... +0
1
1, 0, 0, -35, 5, -13684, 1572, -66226, 1853110, -40553751164, 5789555879, -242818131784156, 38257326112356, -3934030213342971 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A028847 A059023 A037934 this_sequence A034086 A051050 A012862

Adjacent sequences: A013545 A013546 A013547 this_sequence A013549 A013550 A013551

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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