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 | 75 |
| 2 | 5625 |
| 3 | 363465 |
| 4 | 23335217 |
| 5 | 1488199144 |
| 6 | 94853765621 |
| 7 | 6043775871265 |
| 8 | 385074186960645 |
| 9 | 24534288457459085 |
| 10 | 1563152762306175249 |
| 11 | 99593046497034263129 |
| 12 | 6345364097458333024131 |
| 13 | 404281676173244236904185 |