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 | 142 |
| 2 | 160 |
| 3 | 1375 |
| 4 | 6127 |
| 5 | 12643 |
| 6 | 51703 |
| 7 | 86833 |
| 8 | 103039 |
| 9 | 104647 |
| 10 | 112093 |
| 11 | 137317 |
| 12 | 218269 |
| 13 | 261883 |
| 14 | 266923 |
| 15 | 449881 |
| 16 | 505891 |
| 17 | 617569 |
| 18 | 907873 |