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 | 1023456789 |
| 2 | 1023456798 |
| 3 | 1023456789 |
| 4 | 1023457896 |
| 5 | 1023467895 |
| 6 | 1023456798 |
| 7 | 1023456798 |
| 8 | 1023457896 |
| 9 | 1023456789 |
| 10 | 1234567890 |
| 11 | 1024375869 |
| 12 | 1023457896 |
| 13 | 1023456798 |
| 14 | 1023456798 |
| 15 | 1023467895 |
| 16 | 1023457968 |
| 17 | 1023457698 |
| 18 | 1023456798 |