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 | 2112 |
| 2 | 25152 |
| 3 | 29792 |
| 4 | 67776 |
| 5 | 84448 |
| 6 | 219912 |
| 7 | 252252 |
| 8 | 270072 |
| 9 | 272272 |
| 10 | 464464 |
| 11 | 616616 |
| 12 | 631136 |
| 13 | 652256 |
| 14 | 656656 |
| 15 | 696696 |
| 16 | 698896 |
| 17 | 801108 |
| 18 | 802208 |
| 19 | 828828 |
| 20 | 840048 |
| 21 | 848848 |
| 22 | 861168 |
| 23 | 882288 |
| 24 | 886688 |
| 25 | 888888 |
| 26 | 2110112 |
| 27 | 2150512 |
| 28 | 2171712 |
| 29 | 2175712 |