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 | 7 |
| 5 | 11 |
| 6 | 31 |
| 7 | 71 |
| 8 | 163 |
| 9 | 18258901387 |
| 10 | 90367894271 |
| 11 | 13 |
| 12 | 73 |
| 13 | 1861 |
| 14 | 344800741 |
| 15 | 34351783286302805384336021 |
| 16 | 940315563074788471 |
| 17 | 1886172359328147919771 |
| 18 | 14854831 |