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 | 2 |
| 2 | 157 |
| 3 | 1697 |
| 4 | 190573 |
| 5 | 167719729 |
| 6 | 22092660553 |
| 7 | 57613776809 |
| 8 | 4386989244577 |
| 9 | 91982826261331 |
| 10 | 13432259712845291 |