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Search: id:A013204
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A013204 log(sech(x)+tan(x))=x-2/2!*x^2+7/3!*x^3-24/4!*x^4+165/5!*x^5... +0
1
1, -2, 7, -24, 165, -1232, 10827, -111104, 1316585, -17449472, 257028847, -4164086784, 73616009805, -1409671718912, 29070305745267, -642304219480064, 15137914082015825, -379068532960919552 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A007162 A102286 A123764 this_sequence A013209 A048506 A030017

Adjacent sequences: A013201 A013202 A013203 this_sequence A013205 A013206 A013207

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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