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 | 6 |
| 2 | 33 |
| 3 | 177 |
| 4 | 713 |
| 5 | 1745 |
| 6 | 8301 |
| 7 | 8301 |
| 8 | 19217 |
| 9 | 175233 |
| 10 | 175233 |
| 11 | 33952613 |
| 12 | 4377722627 |
| 13 | 4377722627 |
| 14 | 1242030992177 |
| 15 | 1242030992177 |