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 | 269 |
| 4 | 401 |
| 5 | 631 |
| 6 | 701 |
| 7 | 1321 |
| 8 | 2707 |
| 9 | 5471 |
| 10 | 6581 |