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 | 16 |
| 2 | 9801 |
| 3 | 3485689 |
| 4 | 1539699121 |
| 5 | 619901126244 |
| 6 | 259039174953636 |
| 7 | 106295637843093924 |
| 8 | 43910419047705413284 |