Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A012243
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A012243 log(cos(arctanh(x)))=-1/2!*x^2-10/4!*x^4-280/6!*x^6-15440/8!*x^8... +0
1
1, 10, 280, 15440, 1412480, 193606400, 37162777600, 9519986944000, 3139364220928000, 1295834618224640000, 654668849830461440000, 397456058751397068800000, 285567610965661253632000000 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A157713 A165457 A025035 this_sequence A077281 A049387 A024295

Adjacent sequences: A012240 A012241 A012242 this_sequence A012244 A012245 A012246

KEYWORD

nonn

AUTHOR

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

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.