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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 174 |
| 4 | 7360 |
| 5 | 512720 |
| 6 | 53245824 |
| 7 | 7713320944 |
| 8 | 1486382446592 |
| 9 | 367691598791424 |
| 10 | 113570289012090880 |