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 | 3 |
| 3 | 9 |
| 4 | 74853 |
| 5 | 1275039 |
| 6 | 27181907 |
| 7 | 31261887 |
| 8 | 989255061 |
| 9 | 4813809711 |
| 10 | 3187842157567 |
| 11 | 313768710194691 |