Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A002428
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A002428
Numerators of coefficients of expansion of arctan(x)^2 = x^2-2/3*x^4+23/45*x^6-44/105*x^8+563/1575*x^10-3254/10395*x^12+ ...
(Formerly M2131 N0844)
+0
6
0, 1, -2, 23, -44, 563, -3254, 88069, -11384, 1593269, -15518938, 31730711, -186088972, 3788707301, -5776016314, 340028535787, -667903294192, 10823198495797, -5476065119726, 409741429887649, -103505656241356, 17141894231615609
(
list
;
graph
;
listen
)
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 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
