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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 10 |
| 6 | 11 |
| 7 | 12 |
| 8 | 15 |
| 9 | 80 |
| 10 | 100 |
| 11 | 1000 |
| 12 | 1001 |
| 13 | 1002 |
| 14 | 1003 |
| 15 | 1004 |
| 16 | 1011 |
| 17 | 1012 |
| 18 | 1080 |
| 19 | 2000 |
| 20 | 3000 |
| 21 | 3001 |
| 22 | 4000 |
| 23 | 11000 |
| 24 | 12000 |
| 25 | 80000 |