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 | 75 |
| 3 | 875 |
| 4 | 6875 |
| 5 | 96875 |
| 6 | 296875 |
| 7 | 4296875 |
| 8 | 4296875 |
| 9 | 404296875 |
| 10 | 9404296875 |
| 11 | 39404296875 |
| 12 | 639404296875 |
| 13 | 6639404296875 |
| 14 | 86639404296875 |
| 15 | 86639404296875 |
| 16 | 2086639404296875 |
| 17 | 52086639404296875 |