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 | 32 |
| 3 | 49 |
| 4 | 109 |
| 5 | 139 |
| 6 | 409 |
| 7 | 496 |
| 8 | 566 |
| 9 | 3392 |
| 10 | 4287 |
| 11 | 5364 |
| 12 | 358962 |
| 13 | 488444 |
| 14 | 4488044 |
| 15 | 59299951 |
| 16 | 59999665 |
| 17 | 88889733 |
| 18 | 488849933 |
| 19 | 569199933 |
| 20 | 5888999662 |
| 21 | 3888899909932 |