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!)

A221201 as a simple table

n a(n)
1 0
2 9
3 10
4 196
5 720
6 6400
7 34272
8 242064
9 1460368
10 9610000
11 60194160
12 387459856
13 2455717680
14 15698085264
15 99863349040
16 636989149456
17 4056917039280
18 25859869267600
19 164758872493872
20 1049992515273744
21 6690497356781488

[0,9,10,196,720,6400,34272,242064,1460368,9610000,
 60194160,387459856,2455717680,15698085264,
 99863349040,636989149456,4056917039280,
 25859869267600,164758872493872,1049992515273744,
 6690497356781488]

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 14:07 EDT 2024. Contains 371988 sequences. (Running on oeis4.)