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 | 3 |
| 3 | 5 |
| 4 | 17 |
| 5 | 251 |
| 6 | 733 |
| 7 | 1063 |
| 8 | 123863 |
| 9 | 1677209 |
| 10 | 6336823451747417 |
| 11 | 104868559750360787 |
| 12 | 7665762181374748069 |