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 | 125 |
| 2 | 1125 |
| 3 | 1250 |
| 4 | 11250 |
| 5 | 12500 |
| 6 | 112500 |
| 7 | 125000 |
| 8 | 1125000 |
| 9 | 1250000 |
| 10 | 11250000 |
| 11 | 12500000 |
| 12 | 112500000 |
| 13 | 125000000 |
| 14 | 1125000000 |
| 15 | 1250000000 |