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 | 89 |
| 2 | 178481 |
| 3 | 2089 |
| 4 | 616318177 |
| 5 | 164511353 |
| 6 | 2099863 |
| 7 | 13264529 |
| 8 | 20394401 |
| 9 | 3203431780337 |
| 10 | 761838257287 |
| 11 | 212885833 |
| 12 | 9361973132609 |