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 | 5 |
| 2 | 256 |
| 3 | 4882 |
| 4 | 88608 |
| 5 | 1692480 |
| 6 | 32871240 |
| 7 | 629907345 |
| 8 | 11836974284 |
| 9 | 218772951624 |
| 10 | 3990894156672 |
| 11 | 72039322124013 |
| 12 | 1289057677580204 |
| 13 | 22896767645452466 |
| 14 | 404155803725865164 |
| 15 | 7095412544059877973 |
| 16 | 123985136981584276480 |
| 17 | 2157631059961863479079 |
| 18 | 37411816576772657794784 |