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 | 3 |
| 2 | 3655 |
| 3 | 260281 |
| 4 | 525825 |
| 5 | 10656036 |
| 6 | 5973696 |
| 7 | 980691328 |
| 8 | 4971191616 |
| 9 | 1004794171200 |
| 10 | 110457755136 |