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 | 5 |
| 3 | 7 |
| 4 | 13 |
| 5 | 29 |
| 6 | 31 |
| 7 | 47 |
| 8 | 53 |
| 9 | 61 |
| 10 | 73 |
| 11 | 89 |
| 12 | 103 |
| 13 | 257 |
| 14 | 349 |
| 15 | 521 |
| 16 | 607 |
| 17 | 821 |
| 18 | 907 |
| 19 | 1283 |
| 20 | 4057 |
| 21 | 6329 |
| 22 | 7451 |
| 23 | 8039 |
| 24 | 12457 |
| 25 | 30689 |
| 26 | 41257 |
| 27 | 63809 |
| 28 | 74521 |
| 29 | 80369 |