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!)

A238027 as a simple table

n a(n)
1 20
2 74
3 212
4 828
5 2312
6 9178
7 25652
8 102356
9 287960
10 1150916
11 3260168
12 13037240
13 37151120
14 148591610
15 425537780
16 1702102500
17 4894629560
18 19578333484
19 56494758872
20 225978330056
21 653985816944
22 2615940563620
23 7589574333512

[20,74,212,828,2312,9178,25652,102356,287960,
 1150916,3260168,13037240,37151120,148591610,
 425537780,1702102500,4894629560,19578333484,
 56494758872,225978330056,653985816944,
 2615940563620,7589574333512]

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 September 24 22:14 EDT 2023. Contains 365582 sequences. (Running on oeis4.)