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 | 7 |
| 4 | 225 |
| 5 | 487 |
| 6 | 735 |
| 7 | 50047 |
| 8 | 142835 |
| 9 | 170209 |
| 10 | 249655 |
| 11 | 316585343 |
| 12 | 374788043 |
| 13 | 2460457827 |
| 14 | 2803329305 |
| 15 | 6860334657 |
| 16 | 65397031525 |
| 17 | 78658228039 |