login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A222884 as a simple table

n a(n)
1 1
2 0
3 0
4 6
5 16
6 16
7 40
8 280
9 768
10 1440
11 3808
12 16352
13 45056
14 111104
15 300672
16 1072512
17 2959360
18 8281600
19 22668800
20 74866176
21 206880768
22 614068224
23 1691502592
24 5409544192
25 14973206528
26 45696688128
27 126360084480
28 398896128000

[1,0,0,6,16,16,40,280,768,1440,3808,16352,45056,
 111104,300672,1072512,2959360,8281600,22668800,
 74866176,206880768,614068224,1691502592,
 5409544192,14973206528,45696688128,126360084480,
 398896128000]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 22 17:42 EDT 2022. Contains 353957 sequences. (Running on oeis4.)