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 | 13 |
| 7 | 29 |
| 8 | 47 |
| 9 | 101 |
| 10 | 257 |
| 11 | 349 |
| 12 | 1201 |
| 13 | 1907 |
| 14 | 3533 |
| 15 | 122449 |
| 16 | 360233 |
| 17 | 420271 |
| 18 | 9172043 |
| 19 | 10700717 |
| 20 | 11015860931 |
| 21 | 825141735599 |
| 22 | 8577010309290077 |
| 23 | 25232684617711471 |
| 24 | 34344487396329503 |
| 25 | 63627402961872791 |