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 | 5 |
| 2 | 7 |
| 3 | 11 |
| 4 | 13 |
| 5 | 17 |
| 6 | 31 |
| 7 | 37 |
| 8 | 41 |
| 9 | 67 |
| 10 | 107 |
| 11 | 151 |
| 12 | 257 |
| 13 | 349 |
| 14 | 457 |
| 15 | 787 |
| 16 | 911 |
| 17 | 1289 |
| 18 | 1627 |
| 19 | 3271 |
| 20 | 8233 |
| 21 | 13163 |
| 22 | 14551 |
| 23 | 31517 |
| 24 | 55579 |
| 25 | 103289 |