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!)

A221447 as a simple table

n a(n)
1 1
2 9
3 33
4 117
5 429
6 1577
7 5785
8 21217
9 77825
10 285473
11 1047145
12 3841029
13 14089277
14 51680881
15 189570641
16 695364065
17 2550664929
18 9356094041
19 34319088593
20 125885849013
21 461761883309
22 1693788766169
23 6212986580521
24 22789856102913

[1,9,33,117,429,1577,5785,21217,77825,285473,
 1047145,3841029,14089277,51680881,189570641,
 695364065,2550664929,9356094041,34319088593,
 125885849013,461761883309,1693788766169,
 6212986580521,22789856102913]

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 July 19 22:34 EDT 2024. Contains 374441 sequences. (Running on oeis4.)