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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 27 |
| 6 | 32 |
| 7 | 63 |
| 8 | 69 |
| 9 | 107 |
| 10 | 145 |
| 11 | 154 |
| 12 | 173 |
| 13 | 190 |
| 14 | 271 |
| 15 | 412 |
| 16 | 1219 |
| 17 | 1509 |
| 18 | 2392 |
| 19 | 4444 |
| 20 | 5567 |
| 21 | 7424 |
| 22 | 32174 |
| 23 | 51573 |