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 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 19 |
| 5 | 23 |
| 6 | 29 |
| 7 | 47 |
| 8 | 61 |
| 9 | 97 |
| 10 | 181 |
| 11 | 233 |
| 12 | 307 |
| 13 | 401 |
| 14 | 887 |
| 15 | 1021 |
| 16 | 1087 |
| 17 | 1361 |
| 18 | 1481 |
| 19 | 2053 |
| 20 | 2293 |
| 21 | 5407 |
| 22 | 5857 |
| 23 | 11059 |
| 24 | 14281 |
| 25 | 27277 |
| 26 | 27803 |
| 27 | 36497 |
| 28 | 44987 |
| 29 | 53017 |