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 | 123456789 |
| 2 | 123678459 |
| 3 | 123875649 |
| 4 | 124563789 |
| 5 | 124789563 |
| 6 | 127593468 |
| 7 | 127638945 |
| 8 | 127648953 |
| 9 | 132487695 |
| 10 | 132596478 |
| 11 | 134526789 |
| 12 | 135246879 |
| 13 | 135926748 |
| 14 | 135947826 |
| 15 | 136245978 |
| 16 | 136597482 |
| 17 | 136758924 |
| 18 | 136875249 |
| 19 | 137645982 |
| 20 | 137689245 |
| 21 | 137826459 |
| 22 | 138752649 |
| 23 | 138795462 |
| 24 | 138976452 |