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 | 7 |
| 2 | 733 |
| 3 | 733111 |
| 4 | 7331111111 |
| 5 | 733111111111111 |
| 6 | 733111111111111111111 |
| 7 | 733111111111111111111129129129129129129129 |
| 8 | 733111111111111111111129129129129129129129123123123123123123123123 |