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 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 13 |
| 5 | 69 |
| 6 | 71 |
| 7 | 637225 |
| 8 | 637253 |
| 9 | 637313 |
| 10 | 637327 |
| 11 | 4124459 |
| 12 | 4124685 |
| 13 | 27067033 |
| 14 | 179993017 |
| 15 | 179993023 |
| 16 | 1208198853 |
| 17 | 8179002097 |
| 18 | 8179002109 |
| 19 | 55762149091 |