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 | 81 |
| 3 | 7921 |
| 4 | 776161 |
| 5 | 76055841 |
| 6 | 7452696241 |
| 7 | 730288175761 |
| 8 | 71560788528321 |
| 9 | 7012226987599681 |
| 10 | 687126683996240401 |
| 11 | 67331402804643959601 |
| 12 | 6597790348171111800481 |
| 13 | 646516122717964312487521 |
| 14 | 63351982236012331511976561 |
| 15 | 6207847743006490523861215441 |