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 | 29 |
| 4 | 229 |
| 5 | 10273 |
| 6 | 1000099 |
| 7 | 1061069 |
| 8 | 101872769 |
| 9 | 1569793669 |
| 10 | 20207116829 |
| 11 | 1069666778189 |
| 12 | 102533896856389 |
| 13 | 10003581910211789 |
| 14 | 1000003754654504609 |
| 15 | 100003356331318330889 |