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 | 7140 |
| 2 | 16380 |
| 3 | 87780 |
| 4 | 1543668 |
| 5 | 1697892 |
| 6 | 4444440 |
| 7 | 5858580 |