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 | 9 |
| 2 | 81 |
| 3 | 961 |
| 4 | 9216 |
| 5 | 96721 |
| 6 | 929296 |
| 7 | 9690769 |
| 8 | 98525476 |
| 9 | 987656329 |
| 10 | 9618509476 |
| 11 | 98987632129 |
| 12 | 987650365636 |
| 13 | 9890943230169 |
| 14 | 98987854141696 |
| 15 | 987896383010761 |
| 16 | 9896907878105616 |
| 17 | 98989096389856929 |
| 18 | 989894587654967296 |
| 19 | 9898969096969272961 |
| 20 | 98985494707696721476 |