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!)

A192540 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 20
6 70
7 255
8 960
9 3707
10 14597
11 58382
12 236522
13 968597
14 4003061
15 16674858
16 69936760
17 295092057
18 1251747436
19 5334958079
20 22834290248
21 98108081192
22 422986894605
23 1829443421394
24 7935301625600
25 34510975557383
26 150456011512671
27 657415433062780

[1,1,2,6,20,70,255,960,3707,14597,58382,236522,
 968597,4003061,16674858,69936760,295092057,
 1251747436,5334958079,22834290248,98108081192,
 422986894605,1829443421394,7935301625600,
 34510975557383,150456011512671,657415433062780]

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 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)