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 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 9 |
| 5 | 12 |
| 6 | 16 |
| 7 | 33 |
| 8 | 78 |
| 9 | 124 |
| 10 | 334 |
| 11 | 3618 |
| 12 | 3682 |
| 13 | 3739 |
| 14 | 4732 |
| 15 | 6676 |
| 16 | 16014 |
| 17 | 20023 |
| 18 | 20364 |
| 19 | 66793 |