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 | 5 |
| 3 | 17 |
| 4 | 49 |
| 5 | 53 |
| 6 | 185 |
| 7 | 503 |
| 8 | 1301 |
| 9 | 1689 |
| 10 | 1797 |
| 11 | 5929 |
| 12 | 14747 |
| 13 | 20433 |
| 14 | 29903 |
| 15 | 42137 |
| 16 | 64763 |