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 | 383 |
| 4 | 683 |
| 5 | 863 |
| 6 | 883 |
| 7 | 3833 |
| 8 | 3863 |
| 9 | 6833 |
| 10 | 6863 |
| 11 | 6883 |
| 12 | 8363 |
| 13 | 8663 |
| 14 | 8863 |
| 15 | 33863 |
| 16 | 36383 |
| 17 | 36683 |
| 18 | 36833 |
| 19 | 38333 |
| 20 | 38833 |
| 21 | 63863 |
| 22 | 66383 |
| 23 | 66683 |
| 24 | 66863 |
| 25 | 66883 |
| 26 | 68633 |
| 27 | 68683 |
| 28 | 68863 |
| 29 | 83383 |
| 30 | 83663 |
| 31 | 83833 |
| 32 | 88663 |
| 33 | 88883 |
| 34 | 333383 |
| 35 | 336683 |
| 36 | 336863 |
| 37 | 338383 |
| 38 | 338683 |
| 39 | 363683 |
| 40 | 363833 |