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 | 1 |
| 2 | 2 |
| 3 | 35 |
| 4 | 275 |
| 5 | 12161 |
| 6 | 3015179 |
| 7 | 1610981344 |
| 8 | 1479214192234 |
| 9 | 4028895802966726 |
| 10 | 43695679891258322395 |