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 | 4 |
| 2 | 8 |
| 3 | 9 |
| 4 | 121 |
| 5 | 343 |
| 6 | 1331 |
| 7 | 10201 |
| 8 | 14641 |
| 9 | 94249 |
| 10 | 1030301 |
| 11 | 104060401 |
| 12 | 900075181570009 |
| 13 | 10022212521222001 |
| 14 | 12124434743442121 |
| 15 | 12323244744232321 |
| 16 | 12341234943214321 |
| 17 | 1022321210249420121232201 |
| 18 | 1210024420147410244200121 |
| 19 | 1210222232227222322220121 |