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 | 6561 |
| 1 | 43046721 |
| 2 | 2562890625 |
| 3 | 37822859361 |
| 4 | 282429536481 |
| 5 | 1406408618241 |
| 6 | 5352009260481 |
| 7 | 16815125390625 |
| 8 | 45767944570401 |
| 9 | 111429157112001 |
| 10 | 248155780267521 |
| 11 | 513798374428641 |
| 12 | 1001129150390625 |
| 13 | 1853020188851841 |
| 14 | 3282116715437121 |
| 15 | 5595818096650401 |
| 16 | 9227446944279201 |