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 | 81 |
| 2 | 6561 |
| 3 | 385700 |
| 4 | 24609576 |
| 5 | 1558668181 |
| 6 | 98523889293 |
| 7 | 6231989402196 |
| 8 | 394199392835388 |
| 9 | 24934537275160193 |
| 10 | 1577208767277367193 |
| 11 | 99764749430808100292 |
| 12 | 6310518350640206463960 |
| 13 | 399165473341720336437009 |