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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 9 |
| 5 | 13 |
| 6 | 25 |
| 7 | 27 |
| 8 | 29 |
| 9 | 95 |
| 10 | 107 |
| 11 | 153 |
| 12 | 159 |
| 13 | 675 |
| 14 | 1633 |
| 15 | 1693 |
| 16 | 2337 |
| 17 | 25998 |
| 18 | 64289 |