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 | 233 |
| 3 | 10000 |
| 4 | 883049 |
| 5 | 63367633 |
| 6 | 4982424404 |
| 7 | 381987110556 |
| 8 | 29628810704689 |
| 9 | 2291898956153380 |
| 10 | 177547968807911516 |
| 11 | 13750881831250357785 |
| 12 | 1065189200482251908097 |
| 13 | 82511968595532627713640 |