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 | 1 |
| 2 | 4 |
| 3 | 81 |
| 4 | 144 |
| 5 | 441 |
| 6 | 484 |
| 7 | 841 |
| 8 | 1444 |
| 9 | 11881 |
| 10 | 14884 |
| 11 | 48841 |
| 12 | 1418481 |
| 13 | 414488881 |
| 14 | 144418888188481 |
| 15 | 4141181448448144 |
| 16 | 4811118811848441 |
| 17 | 11181184881818884 |
| 18 | 1814448814844418841 |
| 19 | 114811414848448481881 |
| 20 | 441148818414884144184841 |
| 21 | 884188888841188881111184 |
| 22 | 18181411818114841118484484 |