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 | 7 |
| 4 | 81 |
| 5 | 223 |
| 6 | 250 |
| 7 | 255 |
| 8 | 537 |
| 9 | 543 |
| 10 | 1042 |
| 11 | 2103 |
| 12 | 4285 |
| 13 | 25015 |
| 14 | 35361 |
| 15 | 43525 |