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 | 729 |
| 5 | 19683 |
| 6 | 4782969 |
| 7 | 94143178827 |
| 8 | 847288609443 |
| 9 | 7625597484987 |
| 10 | 16677181699666569 |
| 11 | 328256967394537077627 |
| 12 | 26588814358957503287787 |
| 13 | 717897987691852588770249 |
| 14 | 381520424476945831628649898809 |