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 | 6 |
| 2 | 96 |
| 3 | 6306 |
| 4 | 1883076 |
| 5 | 2700393702 |
| 6 | 19324893252552 |
| 7 | 709398600017820522 |
| 8 | 136347641698786289641932 |
| 9 | 139389318443495655514432423662 |
| 10 | 767442745549858935398537400096197328 |