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 | 2 |
| 2 | 9 |
| 3 | 185 |
| 4 | 5387 |
| 5 | 29837 |
| 6 | 1808757 |
| 7 | 33135829 |
| 8 | 67841719 |
| 9 | 4605386587 |
| 10 | 42271385 |
| 11 | 256198086973 |
| 12 | 177455670313 |