Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A012439
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A012439 tanh(arctan(x)*arcsin(x))=2/2!*x^2-4/4!*x^4-82/6!*x^6+3096/8!*x^8... +0
1
2, -4, -82, 3096, 14202, -4057260, 614585190, 65252737200, 9930277245810, 3938676912038700, 2327811184268315550, 661470912900859782600, 625005810716811201651690, 275157523021831158684027780 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A092932 A102663 A076961 this_sequence A012435 A121103 A018397

Adjacent sequences: A012436 A012437 A012438 this_sequence A012440 A012441 A012442

KEYWORD

sign

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 | The OEIS Foundation | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

AT&T Labs Research

Legal Notice
© 2010 AT&T Intellectual Property. All Rights Reserved.