This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
n | a(n) |
---|---|
1 | 9 |
2 | 90 |
3 | 9 |
4 | 900 |
5 | 90 |
6 | 90 |
7 | 9009 |
8 | 9000 |
9 | 9 |
10 | 90 |
11 | 99 |
12 | 900 |
13 | 9009 |
14 | 90090 |
15 | 90 |
16 | 90000 |
17 | 99909 |
18 | 90 |
19 | 99009 |
20 | 900 |
21 | 9009 |
22 | 990 |
23 | 990909 |
24 | 9000 |
25 | 900 |
26 | 90090 |
27 | 999 |
28 | 900900 |
29 | 9909909 |
30 | 90 |
31 | 999099 |
32 | 900000 |
33 | 99 |
34 | 999090 |
35 | 90090 |
36 | 900 |
37 | 999 |
38 | 990090 |
39 | 9009 |
40 | 9000 |
41 | 99999 |
42 | 90090 |
43 | 9909909 |