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 | 3 |
| 3 | 4 |
| 4 | 9 |
| 5 | 28 |
| 6 | 225 |
| 7 | 6076 |
| 8 | 1361025 |
| 9 | 8268226876 |
| 10 | 11253255215681025 |
| 11 | 93044467205527772332546876 |
| 12 | 1047053135870867396062743192203958743681025 |