Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A012464
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A012464 arctanh(atan(x)*atan(x))=2/2!*x^2-16/4!*x^4+608/6!*x^6-43776/8!*x^8... +0
1
2, -16, 608, -43776, 5490432, -1043742720, 281302333440, -101944270848000, 47833801306275840, -28212954337286553600, 20432760600063600230400, -17826780360146975037849600, 18441699370235590444905922560 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Adjacent sequences: A012461 A012462 A012463 this_sequence A012465 A012466 A012467

Sequence in context: A013177 A060279 A012757 this_sequence A128294 A015188 A005118

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

Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.