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 | 3 |
| 3 | 4 |
| 4 | 10 |
| 5 | 12 |
| 6 | 16 |
| 7 | 33 |
| 8 | 696 |
| 9 | 739 |
| 10 | 1764 |
| 11 | 2577 |
| 12 | 3198 |
| 13 | 4242 |
| 14 | 11104 |
| 15 | 18081 |
| 16 | 19587 |
| 17 | 20799 |
| 18 | 22986 |
| 19 | 92178 |