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) |
|---|---|
| 0 | 2 |
| 1 | 11 |
| 2 | 29 |
| 3 | 47 |
| 4 | 277 |
| 5 | 769 |
| 6 | 8867 |
| 7 | 186889 |
| 8 | 2678789 |
| 9 | 26899889 |
| 10 | 3778888999 |
| 11 | 277777788888989 |