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 | 10 |
| 5 | 18 |
| 6 | 19 |
| 7 | 27 |
| 8 | 122 |
| 9 | 184 |
| 10 | 347 |
| 11 | 448 |
| 12 | 542 |
| 13 | 1685 |
| 14 | 5618 |
| 15 | 6208 |
| 16 | 9867 |
| 17 | 25522 |
| 18 | 37688 |
| 19 | 47067 |
| 20 | 79195 |
| 21 | 114592 |
| 22 | 251797 |