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 | 10124389567 |
| 2 | 10124563789 |
| 3 | 10124597683 |
| 4 | 10124635897 |
| 5 | 10124673859 |
| 6 | 10124687359 |
| 7 | 10124695783 |
| 8 | 10124735689 |
| 9 | 10124795683 |
| 10 | 10124867359 |
| 11 | 10124958673 |
| 12 | 10124965387 |
| 13 | 10124965783 |
| 14 | 10125364897 |
| 15 | 10125693847 |
| 16 | 10125749863 |
| 17 | 10125784639 |
| 18 | 10125938467 |
| 19 | 10126387549 |
| 20 | 10126457893 |
| 21 | 10126498573 |