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!)

A065563 as a simple table

n a(n)
1 2
2 6
3 30
4 120
5 520
6 2184
7 9282
8 39270
9 166430
10 704880
11 2986128
12 12649104
13 53583010
14 226980390
15 961505790
16 4073001576
17 17253515288
18 73087057560
19 309601753890
20 1311494059590
21 5555578014142
22 23533806080736

[2,6,30,120,520,2184,9282,39270,166430,704880,
 2986128,12649104,53583010,226980390,961505790,
 4073001576,17253515288,73087057560,309601753890,
 1311494059590,5555578014142,23533806080736]

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 March 28 22:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)