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) |
|---|---|
| 0 | 19 |
| 1 | 18 |
| 2 | 29 |
| 3 | 27 |
| 4 | 9 |
| 5 | 27 |
| 6 | 2187 |
| 7 | 6561 |
| 8 | 531441 |
| 9 | 387420489 |
| 10 | 7625597484987 |
| 11 | 328256967394537077627 |
| 12 | 381520424476945831628649898809 |
| 13 | 235655016338368235499067731945871638181119123 |