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 | 10 |
| 3 | 125 |
| 4 | 1809 |
| 5 | 37820 |
| 6 | 2722768 |
| 7 | 1037849736 |
| 8 | 4204496515890 |
| 9 | 476649763963226416 |