Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A012847
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A012847 arcsinh(sec(x)*arctanh(x))=x+4/3!*x^3+28/5!*x^5+152/7!*x^7+6928/9!*x^9... +0
1
1, 4, 28, 152, 6928, 2225408, 348750400, 38567316608, 5024551512320, 2238520490011648, 1265695140964379648, 555587429710072952832, 218348017328527789264896, 124784882666107086189330432 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A145544 A006302 A123520 this_sequence A128721 A053524 A125687

Adjacent sequences: A012844 A012845 A012846 this_sequence A012848 A012849 A012850

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 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research

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