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 | 0 |
| 2 | 1 |
| 3 | 9 |
| 4 | 82 |
| 5 | 747 |
| 6 | 74035 |
| 7 | 73961712 |
| 8 | 7396097312323 |
| 9 | 739609723836276649389 |
| 10 | 7396097238362026884173559820662934 |
| 11 | 7396097238362026884166163723424572712725550276455986455 |