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 | 25 |
| 2 | 757 |
| 3 | 29925 |
| 4 | 1281402 |
| 5 | 59340183 |
| 6 | 2862828262 |
| 7 | 142920335981 |
| 8 | 7311973715989 |