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!)

A307397 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 8
5 18
6 50
7 150
8 429
9 1258
10 3835
11 11740
12 36148
13 112856
14 355318
15 1124582
16 3582186
17 11477162
18 36939043
19 119387415
20 387393424
21 1261422550
22 4120343870
23 13498085604
24 44337516318
25 145993301239
26 481812344551
27 1593439356575
28 5280074015618
29 17528034861180

[1,1,1,3,8,18,50,150,429,1258,3835,11740,36148,
 112856,355318,1124582,3582186,11477162,36939043,
 119387415,387393424,1261422550,4120343870,
 13498085604,44337516318,145993301239,481812344551,
 1593439356575,5280074015618,17528034861180]

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 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)