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 | 48989 |
| 6 | 5453971 |
| 7 | 61636943111479 |
| 8 | 128359315177123 |
| 9 | 884785266899689 |
| 10 | 1116777231836989 |