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!)

A202957 as a simple table

n a(n)
1 20
2 108
3 414
4 1936
5 9872
6 47732
7 229714
8 1134036
9 5624396
10 27808428
11 138043018
12 688575460
13 3440536326
14 17214566036
15 86312920760
16 433540643300
17 2180469363652
18 10980201879136
19 55360485999044
20 279418616308916
21 1411643137279198

[20,108,414,1936,9872,47732,229714,1134036,
 5624396,27808428,138043018,688575460,3440536326,
 17214566036,86312920760,433540643300,
 2180469363652,10980201879136,55360485999044,
 279418616308916,1411643137279198]

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 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)