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!)

A280156 as a simple table

n a(n)
1 2
2 8
3 31
4 94
5 305
6 950
7 2901
8 8728
9 26068
10 77326
11 228367
12 671446
13 1967328
14 5745190
15 16730555
16 48594066
17 140815777
18 407186706
19 1175159395
20 3385527188
21 9737463217
22 27964574958
23 80197812317
24 229694924100
25 657073271390
26 1877519404364

[2,8,31,94,305,950,2901,8728,26068,77326,228367,
 671446,1967328,5745190,16730555,48594066,
 140815777,407186706,1175159395,3385527188,
 9737463217,27964574958,80197812317,229694924100,
 657073271390,1877519404364]

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 19 08:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)