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 | 9 |
| 6 | 10 |
| 7 | 16 |
| 8 | 31 |
| 9 | 36 |
| 10 | 48 |
| 11 | 105 |
| 12 | 129 |
| 13 | 315 |
| 14 | 316 |
| 15 | 387 |
| 16 | 538 |
| 17 | 1285 |
| 18 | 1542 |
| 19 | 2048 |
| 20 | 3855 |
| 21 | 4599 |
| 22 | 4864 |
| 23 | 7760 |
| 24 | 13797 |
| 25 | 18166 |
| 26 | 24417 |
| 27 | 60787 |
| 28 | 104694 |