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!)

A128831 as a simple table

n a(n)
1 1
2 27
3 343
4 3375
5 29791
6 250047
7 2048383
8 16581375
9 133432831
10 1070599167
11 8577357823
12 68669157375
13 549554511871
14 4397241253887
15 35181150961663
16 281462092005375
17 2251748274470911
18 18014192351838207
19 144114363443707903

[1,27,343,3375,29791,250047,2048383,16581375,
 133432831,1070599167,8577357823,68669157375,
 549554511871,4397241253887,35181150961663,
 281462092005375,2251748274470911,
 18014192351838207,144114363443707903]

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 19:21 EDT 2024. Contains 371754 sequences. (Running on oeis4.)