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!)

A220633 as a simple table

n a(n)
1 1
2 1
3 3
4 12
5 44
6 158
7 564
8 2010
9 7160
10 25502
11 90828
12 323490
13 1152128
14 4103366
15 14614356
16 52049802
17 185378120
18 660233966
19 2351458140
20 8374842354
21 29827443344
22 106232014742
23 378350930916
24 1347516822234
25 4799252328536
26 17092790630078

[1,1,3,12,44,158,564,2010,7160,25502,90828,323490,
 1152128,4103366,14614356,52049802,185378120,
 660233966,2351458140,8374842354,29827443344,
 106232014742,378350930916,1347516822234,
 4799252328536,17092790630078]

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 16 10:24 EDT 2024. Contains 371700 sequences. (Running on oeis4.)