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!)

A198971 as a simple table

n a(n)
0 4
1 49
2 499
3 4999
4 49999
5 499999
6 4999999
7 49999999
8 499999999
9 4999999999
10 49999999999
11 499999999999
12 4999999999999
13 49999999999999
14 499999999999999
15 4999999999999999
16 49999999999999999
17 499999999999999999
18 4999999999999999999

[4,49,499,4999,49999,499999,4999999,49999999,
 499999999,4999999999,49999999999,499999999999,
 4999999999999,49999999999999,499999999999999,
 4999999999999999,49999999999999999,
 499999999999999999,4999999999999999999]

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 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)