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 | 19 |
| 3 | 31 |
| 4 | 101 |
| 5 | 139 |
| 6 | 167 |
| 7 | 1097 |
| 8 | 43151 |
| 9 | 60703 |
| 10 | 90499 |