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 | 9876543210 |
| 2 | 4938271605 |
| 3 | 3291768054 |
| 4 | 2469135780 |
| 5 | 1975308642 |
| 6 | 1645839027 |
| 7 | 1409632875 |
| 8 | 1234567890 |
| 9 | 1097368245 |