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 | 5 |
| 4 | 3585 |
| 5 | 4911 |
| 6 | 5709 |
| 7 | 1688565 |
| 8 | 7361691 |
| 9 | 16747709 |
| 10 | 3226850283899 |
| 11 | 8814126944005 |
| 12 | 33226030397603 |