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 | 481 |
| 3 | 8321 |
| 4 | 4617761 |
| 5 | 79897441 |
| 6 | 44339739841 |
| 7 | 767175219361 |
| 8 | 425750177334721 |
| 9 | 7366416376406081 |
| 10 | 4088053158428250401 |
| 11 | 70732329279075969601 |
| 12 | 39253486001477883014881 |
| 13 | 679171818371271083701921 |
| 14 | 376911968498137474280636161 |
| 15 | 6521407729268615666629875041 |