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 | 191 |
| 2 | 821 |
| 3 | 2081 |
| 4 | 3251 |
| 5 | 9431 |
| 6 | 13001 |
| 7 | 15641 |
| 8 | 18041 |
| 9 | 18911 |
| 10 | 25301 |
| 11 | 31721 |
| 12 | 34841 |
| 13 | 51341 |
| 14 | 62981 |
| 15 | 67211 |
| 16 | 69491 |
| 17 | 72221 |
| 18 | 77261 |
| 19 | 81041 |
| 20 | 82721 |
| 21 | 97841 |
| 22 | 99131 |
| 23 | 109841 |
| 24 | 116531 |
| 25 | 119291 |
| 26 | 122201 |
| 27 | 135461 |
| 28 | 157271 |
| 29 | 171161 |
| 30 | 187631 |
| 31 | 194861 |
| 32 | 201491 |
| 33 | 217361 |