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 | 315 |
| 3 | 360 |
| 4 | 384 |
| 5 | 47696 |
| 6 | 496498 |
| 7 | 1577526 |
| 8 | 5607861220 |
| 9 | 6106488294 |