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 | 1 |
| 1 | 6561 |
| 2 | 390625 |
| 3 | 5764801 |
| 4 | 43046721 |
| 5 | 214358881 |
| 6 | 815730721 |
| 7 | 2562890625 |
| 8 | 6975757441 |
| 9 | 16983563041 |
| 10 | 37822859361 |
| 11 | 78310985281 |
| 12 | 152587890625 |
| 13 | 282429536481 |
| 14 | 500246412961 |
| 15 | 852891037441 |
| 16 | 1406408618241 |
| 17 | 2251875390625 |
| 18 | 3512479453921 |
| 19 | 5352009260481 |
| 20 | 7984925229121 |
| 21 | 11688200277601 |