Greetings from
The On-Line Encyclopedia of Integer Sequences
!
Hints
Search:
id:A143357
Displaying 1-1 of 1 results found.
page 1
Format:
long
| short |
internal
|
text
Sort: relevance |
references
|
number
Highlight: on |
off
A143357
Floor((n-1)!/[n(n+1)]).
+0
1
0, 0, 0, 0, 0, 2, 12, 70, 448, 3298, 27490, 255876, 2631876, 29652480, 363242880, 4807626352, 68375130352, 1040021719578, 16848351857178, 289631191449600, 5266021662720000, 100970241446066086, 2036233202495666086
(
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 5 23:38 EST 2009. Contains 170428 sequences.
AT&T Labs Research
Legal Notice
© 2009 AT&T Intellectual Property.
All Rights Reserved.
