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) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 5 |
| 7 | 1 |
| 8 | 1 |
| 9 | 31 |
| 10 | 16 |
| 11 | 1 |
| 12 | 1 |
| 13 | 352 |
| 14 | 337 |
| 15 | 42 |
| 16 | 1 |
| 17 | 1 |
| 18 | 8389 |
| 19 | 18700 |
| 20 | 2570 |
| 21 | 99 |
| 22 | 1 |
| 23 | 1 |
| 24 | 433038 |
| 25 | 7642631 |
| 26 | 907647 |
| 27 | 16865 |
| 28 | 219 |
| 29 | 1 |