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!)

A028990 as a simple table

n a(n)
1 7
2 929
3 98689
4 9989899
5 999727999
6 99999199999
7 9999987899999
8 999999787999999
9 99999999299999999
10 9999999992999999999
11 999999999757999999999
12 99999999997579999999999 

[7,929,98689,9989899,999727999,99999199999,
 9999987899999,999999787999999,99999999299999999,
 9999999992999999999,999999999757999999999,
 99999999997579999999999]

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 09:33 EDT 2024. Contains 371967 sequences. (Running on oeis4.)