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 | 1089 |
| 2 | 2178 |
| 3 | 4356 |
| 4 | 6534 |
| 5 | 8712 |
| 6 | 9801 |
| 7 | 10989 |
| 8 | 21978 |
| 9 | 24024 |
| 10 | 26208 |
| 11 | 42042 |
| 12 | 43956 |
| 13 | 48048 |
| 14 | 61248 |
| 15 | 65934 |
| 16 | 80262 |
| 17 | 84084 |
| 18 | 84216 |
| 19 | 87912 |
| 20 | 98901 |
| 21 | 109989 |
| 22 | 219978 |
| 23 | 231504 |
| 24 | 234234 |
| 25 | 242424 |
| 26 | 253344 |
| 27 | 255528 |
| 28 | 264264 |
| 29 | 272646 |
| 30 | 275184 |
| 31 | 277816 |
| 32 | 288288 |
| 33 | 405132 |
| 34 | 424242 |
| 35 | 432432 |
| 36 | 439956 |