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 | 12 |
| 5 | 15 |
| 6 | 17 |
| 7 | 22 |
| 8 | 35 |
| 9 | 124 |
| 10 | 191 |
| 11 | 774 |
| 12 | 1405 |
| 13 | 1522 |
| 14 | 3988 |
| 15 | 6220 |
| 16 | 7448 |
| 17 | 8038 |
| 18 | 11404 |
| 19 | 63027 |
| 20 | 161153 |
| 21 | 582096 |