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 | 11 |
| 3 | 69 |
| 4 | 630 |
| 5 | 6283 |
| 6 | 62432 |
| 7 | 623853 |
| 8 | 6250592 |
| 9 | 62514233 |
| 10 | 624983935 |
| 11 | 6250077541 |
| 12 | 62500188844 |