login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A179956 as a simple table

n a(n)
1 1
2 21
3 121
4 1121
5 11121
6 111121
7 1111121
8 11111121
9 111111121
10 1111111121
11 11111111121
12 111111111121
13 1111111111121
14 11111111111121
15 111111111111121
16 1111111111111121
17 11111111111111121
18 111111111111111121
19 1111111111111111121
20 11111111111111111121

[1,21,121,1121,11121,111121,1111121,11111121,
 111111121,1111111121,11111111121,111111111121,
 1111111111121,11111111111121,111111111111121,
 1111111111111121,11111111111111121,
 111111111111111121,1111111111111111121,
 11111111111111111121]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 2 21:30 EDT 2021. Contains 346429 sequences. (Running on oeis4.)