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 | 8 |
| 2 | 421 |
| 3 | 5289 |
| 4 | 71564 |
| 5 | 1073621 |
| 6 | 15498505 |
| 7 | 225780260 |
| 8 | 3307561389 |
| 9 | 48158543096 |
| 10 | 703127937300 |
| 11 | 10259186324647 |
| 12 | 149696614458243 |
| 13 | 2184338617470806 |
| 14 | 31873058777880129 |
| 15 | 465081902561442941 |
| 16 | 6786326832276152384 |