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) |
|---|---|
| 2 | 3 |
| 3 | 41 |
| 4 | 1681 |
| 5 | 13305601 |
| 6 | 2075673601 |
| 7 | 118562476032001 |
| 8 | 40548366802944001 |
| 9 | 8617338912961658880001 |
| 10 | 2947253997913233984847872000001 |
| 11 | 2740946218059307605908520960000001 |