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 | 313 |
| 2 | 353 |
| 3 | 373 |
| 4 | 383 |
| 5 | 3222223 |
| 6 | 3444443 |
| 7 | 322222223 |
| 8 | 355555553 |
| 9 | 3111111111113 |
| 10 | 3444444444443 |
| 11 | 3888888888883 |
| 12 | 311111111111113 |
| 13 | 377777777777773 |
| 14 | 3111111111111111111111111111113 |
| 15 | 3888888888888888888888888888883 |