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 | 12 |
| 2 | 2304 |
| 3 | 7077888 |
| 4 | 347892350976 |
| 5 | 273593677362757632 |
| 6 | 3442605166011971360784384 |
| 7 | 693087965674784425268322477539328 |
| 8 | 2232592609368277258783200799359831235362816 |