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 | 104869 |
| 2 | 108649 |
| 3 | 140689 |
| 4 | 140869 |
| 5 | 148609 |
| 6 | 164089 |
| 7 | 164809 |
| 8 | 168409 |
| 9 | 184609 |
| 10 | 186049 |
| 11 | 401689 |
| 12 | 406981 |
| 13 | 408169 |
| 14 | 408691 |
| 15 | 409861 |
| 16 | 416089 |
| 17 | 418069 |
| 18 | 460189 |
| 19 | 460891 |
| 20 | 460981 |
| 21 | 468019 |
| 22 | 468109 |
| 23 | 469801 |
| 24 | 480169 |
| 25 | 486091 |
| 26 | 489061 |
| 27 | 498061 |
| 28 | 601849 |
| 29 | 604189 |
| 30 | 604819 |