A027332
formatted as a simple table:
n
a(n)
3
20
4
176
5
1512
6
12870
7
109164
8
924748
9
7834168
10
66418402
11
563744942
12
4791449750
13
40783720460
14
347663922060
[20,176,1512,12870,109164,924748,7834168,66418402, 563744942,4791449750,40783720460,347663922060]
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 8 08:31 EST 2009. Contains 170430 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
