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 | 1 |
| 2 | 2 |
| 3 | 66 |
| 4 | 70 |
| 5 | 18084 |
| 6 | 19180 |
| 7 | 24934 |
| 8 | 26715 |
| 9 | 5346390 |
| 10 | 8197798 |
| 11 | 8424178 |
| 12 | 9088863 |
| 13 | 1874967204 |
| 14 | 1988601580 |
| 15 | 2585182054 |
| 16 | 2769837915 |