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!)

A218566 as a simple table

n a(n)
1 0
2 1
3 3
4 2
5 12
6 240
7 3
8 27
9 1080
10 226800
11 4
12 48
13 2880
14 1209600
15 3657830400
16 5
17 75
18 6000
19 3780000
20 22861440000
21 1267438233600000
22 6
23 108
24 10800
25 9072000
26 82301184000
27 9125555281920000
28 11274806061917798400000

[0,1,3,2,12,240,3,27,1080,226800,4,48,2880,
 1209600,3657830400,5,75,6000,3780000,22861440000,
 1267438233600000,6,108,10800,9072000,82301184000,
 9125555281920000,11274806061917798400000]

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 September 7 18:28 EDT 2024. Contains 375749 sequences. (Running on oeis4.)