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 | 46489 |
| 2 | 46889 |
| 3 | 48649 |
| 4 | 48869 |
| 5 | 64489 |
| 6 | 64849 |
| 7 | 68449 |
| 8 | 68489 |
| 9 | 84649 |
| 10 | 84869 |
| 11 | 88469 |
| 12 | 444869 |
| 13 | 448969 |
| 14 | 449689 |
| 15 | 468499 |
| 16 | 468869 |
| 17 | 468889 |
| 18 | 468899 |
| 19 | 469849 |
| 20 | 486449 |
| 21 | 486869 |
| 22 | 486949 |
| 23 | 488689 |
| 24 | 489689 |
| 25 | 489869 |
| 26 | 496849 |
| 27 | 496889 |
| 28 | 498469 |
| 29 | 498689 |
| 30 | 644489 |
| 31 | 644869 |