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 | 11 |
| 2 | 47 |
| 3 | 251 |
| 4 | 9431 |
| 5 | 191 |
| 6 | 19457 |
| 7 | 280627 |
| 8 | 2213 |
| 9 | 1006253 |
| 10 | 9129563 |
| 11 | 66945301 |
| 12 | 184171621 |
| 13 | 726512053 |
| 14 | 2732087209 |
| 15 | 10206934519 |
| 16 | 59883612989 |
| 17 | 25650350371 |