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 | 5 |
| 2 | 51 |
| 3 | 343 |
| 4 | 3185 |
| 5 | 75951 |
| 6 | 1780624 |
| 7 | 16825375 |
| 8 | 212781249 |
| 9 | 4613781249 |
| 10 | 74239460225 |
| 11 | 858245781249 |
| 12 | 46055847109375 |
| 13 | 487028345781249 |