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 | 3 |
| 2 | 83 |
| 3 | 89 |
| 4 | 383 |
| 5 | 389 |
| 6 | 839 |
| 7 | 883 |
| 8 | 983 |
| 9 | 3389 |
| 10 | 3833 |
| 11 | 3889 |
| 12 | 3989 |
| 13 | 8389 |
| 14 | 8839 |
| 15 | 8893 |
| 16 | 8933 |
| 17 | 8999 |
| 18 | 9833 |
| 19 | 9839 |
| 20 | 9883 |
| 21 | 33889 |
| 22 | 33893 |
| 23 | 38333 |
| 24 | 38393 |
| 25 | 38833 |
| 26 | 38839 |
| 27 | 38933 |
| 28 | 38993 |
| 29 | 39383 |
| 30 | 39839 |
| 31 | 39883 |
| 32 | 39983 |
| 33 | 39989 |
| 34 | 83339 |
| 35 | 83383 |
| 36 | 83389 |
| 37 | 83399 |
| 38 | 83833 |
| 39 | 83933 |
| 40 | 83939 |
| 41 | 83983 |
| 42 | 88339 |