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!)

A199127 as a simple table

n a(n)
1 1
2 2
3 2
4 12
5 30
6 30
7 210
8 560
9 560
10 4200
11 11550
12 11550
13 90090
14 252252
15 252252
16 2018016
17 5717712
18 5717712
19 46558512
20 133024320
21 133024320
22 1097450640
23 3155170590
24 3155170590
25 26293088250
26 75957810500
27 75957810500
28 638045608200

[1,2,2,12,30,30,210,560,560,4200,11550,11550,
 90090,252252,252252,2018016,5717712,5717712,
 46558512,133024320,133024320,1097450640,
 3155170590,3155170590,26293088250,75957810500,
 75957810500,638045608200]

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 April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)