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 | 987 |
| 3 | 118472 |
| 4 | 16436223 |
| 5 | 2152770692 |
| 6 | 282454178707 |
| 7 | 36946896429843 |
| 8 | 4831791752404317 |
| 9 | 631836540867287034 |
| 10 | 82621661239567004631 |