Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A062561
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A062561
3*binomial(2n,n-1).
+0
1
0, 3, 12, 45, 168, 630, 2376, 9009, 34320, 131274, 503880, 1939938, 7488432, 28973100, 112326480, 436268025, 1697168160, 6611884290, 25792489800, 100734001830, 393847225200, 1541374822260, 6037849200240, 23671113341850
(
list
;
graph
;
listen
)
page 1
Search completed in 0.001 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.
