login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


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

A128648 as a simple table

n a(n)
1 1
2 2
3 4
4 12
5 60
6 5
7 80
8 720
9 7920
10 55440
11 55440
12 6160
13 6160
14 18480
15 425040
16 5525520
17 160240080
18 160240080
19 53413360
20 53413360
21 480720240
22 480720240
23 19709529840
24 19709529840
25 39419059680
26 197095298400
27 3350620072800
28 177582863858400

[1,2,4,12,60,5,80,720,7920,55440,55440,6160,6160,
 18480,425040,5525520,160240080,160240080,53413360,
 53413360,480720240,480720240,19709529840,
 19709529840,39419059680,197095298400,
 3350620072800,177582863858400]

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 13 21:57 EDT 2020. Contains 336454 sequences. (Running on oeis4.)